beatmania IIDX 9th style Original Soundtrack
catalogue number: KOLA-040~1
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: Release
type: MusicAlbum
created: 2003-09-18
date published: 2003-09-18

Dance Dance Revolution SuperNOVA Original Soundtrack
type: Performance

D7 OTHER MIXTURE
type: Performance

maimai DX Best Album Chiho 2
name: maimai でらっくす ベストアルバムちほー2
type: Performance

もっけ オリジナルサウンドトラック 其ノオンガク
title: Mokke Original Soundtrack Sono Ongaku
performer: Riyu Kosaka
type: Performance
by artist: Riyu Kosaka

ギターフリークス&ドラムマニア ベスト・トラックス
by artist: Riyu Kosaka
date published: 2003-03-19
type: Release
catalogue number: KOLA-023~4
name: GUITARFREAKS & drummania BEST TRACKS
creator: Riyu Kosaka
created: 2003-03-19
type: MusicAlbum

SEVEN's CODE ZERO Vol.5
type: Performance

Strike Party!!! / BeForU
type: MusicAlbum
date published: 2007-01-17
creator: Riyu Kosaka
type: Release
catalogue number: AVCA-26116
by artist: Riyu Kosaka
created: 2007-01-17

GUITARFREAKS & drummania BEST TRACKS
name: ギターフリークス&ドラムマニア ベスト・トラックス
type: Composition

beatmania IIDX 11 IIDX RED Original Soundtrack
type: Composition

V-RARE SOUNDTRACK 10 - beatmaniaIIDX 9th style
catalogue number: LC1369
created: 2005-03-24
type: MusicAlbum
tribute to: Riyu Kosaka
type: Release
date published: 2005-03-24

VVGO Cry About It
type: Composition

Dance Dance Revolution HOTTEST PARTY
created: 2007-12-11
type: MusicAlbum
catalogue number: N/A
date published: 2007-12-11
creator: Riyu Kosaka
type: Release
by artist: Riyu Kosaka

BLUE&RED
type: MusicAlbum
catalogue number: TMCCD-041
creator: Riyu Kosaka
date published: 2020-10-25
type: Release
created: 2020-10-25
by artist: Riyu Kosaka

GuitarFreaksV2 & DrumManiaV2 SoundTracks
type: Performance

ダンスダンスレボリューション パーティーコレクション オリジナル・サウンドトラック
date published: 2003-12-26
name: DanceDanceRevolution PartyCollection ORIGINAL SOUNDTRACK
catalogue number: TOCP-64237~8
creator: Riyu Kosaka
type: Release
created: 2003-12-26
by artist: Riyu Kosaka
type: MusicAlbum

Dance Dance Revolution SuperNOVA
type: Composition

BeForU II
type: Performance

VTuber SPEED
type: Performance

V-RARE SOUNDTRACK 10 - beatmaniaIIDX 9th style
type: Composition

ビー・フォー・ユー
name: BeForU
type: Composition

はるかなレシーブ キャラクターソングCD6
name: HARUKANA RECEIVE CHARACTER SONG CD 6
type: Composition

HARUKANA RECEIVE CHARACTER SONG CD 3
created: 2018-11-28
type: Release
creator: Riyu Kosaka
by artist: Riyu Kosaka
title: はるかなレシーブ キャラクターソングCD3
catalogue number: ZMXZ-12473
date published: 2018-11-28
type: MusicAlbum

DanceDanceRevolutionEXTREME ORIGINAL SOUNDTRACK
title: ダンス・ダンス・レボリューションEXTREME オリジナル・サウンドトラック
type: Composition

WE♥WE [WE LOVE Winning Eleven]
title: ウイ ラブ ウイ [ウイ ラブ ウイニングイレブン]
type: Composition

GUITARFREAKS 9thMIX & drummania 8thMIX SOUNDTRACKS
date published: 2003-06-04
name: ギターフリークス ナインスミックス アンド ドラムマニア エイスミックス サウンドトラックス
creator: Riyu Kosaka
created: 2003-06-04
type: Release
catalogue number: KOLA-034
type: MusicAlbum
by artist: Riyu Kosaka

舞台『PERSONA3 the Weird Masquerade』〜Graduation〜 CD
title: PERSONA3 the Weird Masquerade Graduation
type: Performance

BEMANI BEST for the 10th anniversary
date published: 2007-12-14
type: MusicAlbum
created: 2007-12-14
catalogue number: LC1613~7
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: Release

Strike Party!!! / BeForU
type: Performance

NAOKI MUSIC REINCARNATION
type: Composition

Dynamite Dynamite Rev. NAOKI SPECIAL ALBUM
by artist: Riyu Kosaka
date published: 2018-06-02
type: MusicAlbum
created: 2018-06-02
creator: Riyu Kosaka
catalogue number: NA-001ML
type: Release

birthinfo
type: Birth
place: Yokohama, Kanagawa Prefecture, Japan
principal: Riyu Kosaka
date: 1985-01-17

V-RARE SOUNDTRACK - DDRMAX -Dance Dance Revolution 6thMIX-
type: Performance
by artist: Riyu Kosaka
performer: Riyu Kosaka

ギターフリークス エイスミックス アンド ドラムマニア セブンスミックス サウンドトラックス
name: GUITARFREAKS 8thMIX & drummania 7thMIX Soundtracks
type: Performance

DanceDanceRevolution SuperNOVA2
type: Performance

BeForU
title: ビー・フォー・ユー
type: Performance

はるかなレシーブ キャラクターソングCD3
title: HARUKANA RECEIVE CHARACTER SONG CD 3
type: Performance

Get set GO!! ~BeForU astronauts set~ / BeForU
creator: Riyu Kosaka
type: Release
type: MusicAlbum
date published: 2006-12-22
by artist: Riyu Kosaka
catalogue number: AVC1-26006/B
created: 2006-12-22

ギターフリークス イレヴンスミックス アンド ドラムマニア テンスミックス サウンドトラックス
title: GUITARFREAKS 11thMIX & drummania 10thMIX SOUNDTRACKS
type: Performance

BeForU III ~Breaking Into The Probability Changes~ [CD+DVD]
type: Performance

スカイガールズ~オープニングテーマ「Baby's Tears/小坂りゆ」&オリジナルサウンドトラック~
type: MusicAlbum
date published: 2006-08-25
type: Release
catalogue number: LC1493
name: Sky Girls ~Opening Theme "Baby's Tears/Riyu Kosaka" & Original Soundtrack~
created: 2006-08-25
by artist: Riyu Kosaka
creator: Riyu Kosaka

DDRMAX2 ORIGINAL SOUNDTRACK
type: Release
creator: Riyu Kosaka
by artist: Riyu Kosaka
title: DDRMAX2 オリジナル・サウンドトラック
type: MusicAlbum
created: 2002-06-19
catalogue number: TOCP-64168~9
date published: 2002-06-19

Kamen Rider THE NEXT Original Soundtrack
title: MASKED RIDER THE NEXT ORIGINAL SOUNDTRACK @en
type: Composition
name: 仮面ライダー THE NEXT オリジナルサウンドトラック

Danzai no Hana ~Guilty Sky~ / Riyu Kosaka
name: Guilty Flower ~Guilty Sky~ / Riyu Kosaka @en
title: 断罪の花～Guilty Sky～ / 小坂りゆ
type: Performance

TEARED
type: Performance

beatmania IIDX 11 IIDX RED Original Soundtrack
type: Performance

beatmania IIDX 12 HAPPY SKY ORIGINAL SOUNDTRACK
type: Composition

beatmania IIDX 9th style Original Soundtrack
type: Composition

Ourpath from Diverse System
type: Composition

NAOKI MUSIC REINCARNATION
type: Performance

See You Again
type: Performance

BLUE&RED
type: Composition

GuitarFreaksV2 & DrumManiaV2 SoundTracks
type: Composition

DanceDanceRevolution 20th Anniversary Non Stop Mix Mixed by DJ KOO
type: Performance

Koi to Mizugi to Taiyo to ~Sumire-jima Life Savers~ Original Soundtrack
name: 恋と水着と太陽と～スミレ島ライフセーバーず～ オリジナルサウンドトラック
type: Composition

ダンスダンスレボリューション パーティーコレクション オリジナル・サウンドトラック
title: DanceDanceRevolution PartyCollection ORIGINAL SOUNDTRACK
type: Performance

カオス上等!!誰得?俺得! avex レアニメソング コレクション ガールズサイド
name: Chaos Joutou!! Daretoku? Oretoku! avex Rare Anime Song Collection -GIRLS SIDE-
performer: Riyu Kosaka
by artist: Riyu Kosaka
type: Performance

ONGEKI Vocal Collection 03
type: Performance

DanceDanceRevolution X2 Original Soundtrack
type: Performance

BLUE&RED
type: Performance

DanceDanceRevolution X2 Original Soundtrack
created: 2011-02-23
catalogue number: LC1994~6
type: Release
by artist: Riyu Kosaka
date published: 2011-02-23
type: MusicAlbum
creator: Riyu Kosaka

DDRMAX オリジナル・サウンドトラック
name: DDRMAX ORIGINAL SOUNDTRACK
type: Composition

BeForU II
type: Composition

HARUKANA RECEIVE CHARACTER SONG CD 6
creator: Riyu Kosaka
by artist: Riyu Kosaka
type: MusicAlbum
type: Release
name: はるかなレシーブ キャラクターソングCD6
date published: 2019-02-27
catalogue number: ZMXZ-12476
created: 2019-02-27

GuitarFreaksV4 & DrumManiaV4 Rock×Rock Original Soundtracks
creator: Riyu Kosaka
created: 2008-02-22
type: Release
type: MusicAlbum
by artist: Riyu Kosaka
date published: 2008-02-22
catalogue number: LC1621~2

ONGEKI Vocal Collection 03
type: Composition

ココロの跡 / 小坂りゆ
type: Performance
title: Kokoro no Ato / Riyu Kosaka

テトテ×コネクト Original Soundtrack
creator: Riyu Kosaka
name: Tetote×Connect Original Soundtrack
created: 2025-09-24
by artist: Riyu Kosaka
type: Release
date published: 2025-09-24
catalogue number: ZTTL-9099
type: MusicAlbum

Red Rocket Rising / BeForU
type: Composition

GuitarFreaksV4 & DrumManiaV4 Rock×Rock Original Soundtracks
type: Composition

Dance Dance Revolution SuperNOVA Original Soundtrack
date published: 2007-01-25
type: MusicAlbum
type: Release
catalogue number: LC1533~4
created: 2007-01-25
by artist: Riyu Kosaka
creator: Riyu Kosaka

pop'n music 14 FEVER! AC ♥ CS pop'n music 12 いろは & 13 カーニバル
type: Composition
title: pop'n music 14 FEVER! AC ♥ CS pop'n music 12 Iroha & 13 Carnival

Fragments // Past I -Eternity / NAOKI
type: MusicAlbum
created: 2025-10-26
type: Release
catalogue number: RRRR-002
creator: Riyu Kosaka
by artist: Riyu Kosaka
date published: 2025-10-26

はるかなレシーブ キャラクターソングCD6
name: HARUKANA RECEIVE CHARACTER SONG CD 6
type: Performance

CLAYMORE TV Animation O. S. T.
type: Performance

KI·SE·KI / Be For U
by artist: Riyu Kosaka
created: 2004-11-18
catalogue number: LC1342
type: Release
creator: Riyu Kosaka
type: MusicAlbum
date published: 2004-11-18

Riyu Kosaka
performed: V-RARE SOUNDTRACK 5 - DDRMAX2 -Dance Dance Revolution 7thMIX-
made: V-RARE SOUNDTRACK 10 - beatmaniaIIDX 9th style
made: Danzai no Hana ~Guilty Sky~ / Riyu Kosaka
made: V-RARE SOUNDTRACK - DDRMAX -Dance Dance Revolution 6thMIX-
album: Strike Party!!! / BeForU
made: lyrics
made: HARUKANA RECEIVE CHARACTER SONG CD 4
made: ONGEKI Vocal Collection 03
made: Strike Party!!! / BeForU [CD+DVD]
made: SEVEN's CODE ZERO Vol.6
album: ダンスダンスレボリューション パーティーコレクション オリジナル・サウンドトラック
album: pop'n music 9 AC ♥ CS pop'n music 7
album: PACHISLOT beatmania ORIGINAL SOUNDTRACK
made: Singer
album: Get set GO!! ~BeForU astronauts set~ / BeForU
album: every struggle / 小坂りゆ
made: GUITARFREAKS 9thMIX & drummania 8thMIX SOUNDTRACKS
performed: CROSS†CHANNEL ~In memory of all people~ SPECIAL SOUNDTRACK
album: DanceDanceRevolution 20th Anniversary Non Stop Mix Mixed by DJ KOO
made: DanceDanceRevolution SuperNOVA2 Original Soundtrack
album: BeForU III ~Breaking Into The Probability Changes~ [CD+DVD]
made: はるかなレシーブ キャラクターソングCD5
performed: 小坂りゆ - true...
made: DDRMAX ORIGINAL SOUNDTRACK
made: Live5pb.2010 @JCB Hall
performed: 恋と水着と太陽と～スミレ島ライフセーバーず～ オリジナルサウンドトラック
album: Dance Dance Revolution SuperNOVA
made: Strike Party!!! / BeForU
album: ダンス・ダンス・レボリューションEXTREME オリジナル・サウンドトラック
album: HARUKANA RECEIVE CHARACTER SONG CD 3
made: ギターフリークス・ブイ アンド ドラムマニア・ブイ サウンドトラックス
made: 仮面ライダー THE NEXT オリジナルサウンドトラック
album: ギターフリークス&ドラムマニア ベスト・トラックス
made: GENESiS RE:BUiLD 01
album: true... / Riyu Kosaka
album: Dance Dance Revolution SuperNOVA Limited Edition Music Sampler
made: HARUKANA RECEIVE CHARACTER SONG CD 6
made: BLUE&RED
made: beatmania IIDX 11 IIDX RED Original Soundtrack
album: Live5pb.2010 @JCB Hall
album: pop'n music 14 FEVER! AC ♥ CS pop'n music 12 いろは & 13 カーニバル
album: ダンス・ダンス・レボリューション フェスティバル&ストライク オリジナル・サウンドトラック
made: pop'n music 14 FEVER! AC ♥ CS pop'n music 12 いろは & 13 カーニバル
album: ギターフリークス イレヴンスミックス アンド ドラムマニア テンスミックス サウンドトラックス
made: every struggle / 小坂りゆ
made: ギターフリークス イレヴンスミックス アンド ドラムマニア テンスミックス サウンドトラックス
album: DDRMAX ORIGINAL SOUNDTRACK
album: CLAYMORE TV Animation O. S. T.
type: Person
album: ココロの跡 / 小坂りゆ
made: SEVEN's CODE ZERO Vol.1
made: BeForU II
performed: Live5pb.2010 @JCB Hall
album: GENESiS RE:BUiLD 01
performed: GUITARFREAKS & drummania BEST TRACKS
made: pop'n music 9 AC ♥ CS pop'n music 7
made: SEVEN 〜漆戒〜 / NAOKI feat.小坂りゆ
album: SEVEN's CODE ZERO Vol.6
album: begin / 小坂りゆ
album: beatmania IIDX 12 HAPPY SKY ORIGINAL SOUNDTRACK
type: MusicGroup
album: Dance Dance Revolution SuperNOVA Original Soundtrack
album: BeForU II
album: SEVEN 〜漆戒〜 / NAOKI feat.小坂りゆ
made: maimai DX Best Album Chiho 2
made: CLAYMORE TV Animation O. S. T.
album: BeForU III ~Breaking Into The Probability Changes~
album: Fragments // Past I -Eternity / NAOKI
made: DanceDanceRevolution 20th Anniversary Non Stop Mix Mixed by DJ KOO
made: pop'n music 12 いろは AC ♥ CS pop'n music 10
album: beatmania IIDX 10th style ORIGINAL SOUNDTRACK
performed: ウイ ラブ ウイ [ウイ ラブ ウイニングイレブン]
made: Fragments // Past I -Eternity / NAOKI
album: テトテ×コネクト Original Soundtrack
performed: もっけ オリジナルサウンドトラック 其ノオンガク
album: Red Rocket Rising / BeForU
account: OnlineChatAccount
  account name: kosaka_riyu
  account service homepage: http://www.twitter.com/
album: DanceDanceRevolution X2 Original Soundtrack
album: GuitarFreaksV4 & DrumManiaV4 Rock×Rock Original Soundtracks
member of: BeForU

GENESiS RE:BUiLD 01
date published: 2024-04-28
catalogue number: AXT-CD-001~2
creator: Riyu Kosaka
by artist: Riyu Kosaka
type: Release
created: 2024-04-28
type: MusicAlbum

断罪の花～Guilty Sky～ / 小坂りゆ
title: Guilty Flower ~Guilty Sky~ / Riyu Kosaka [with DVD] @en
title: Danzai no Hana ~Guilty Sky~ / Riyu Kosaka
type: Composition

Dance Dance Revolution HOTTEST PARTY
type: Performance

ウイ ラブ ウイ [ウイ ラブ ウイニングイレブン]
title: WE♥WE [WE LOVE Winning Eleven]
by artist: Riyu Kosaka
type: MusicAlbum
created: 2006-06-14
creator: Riyu Kosaka
date published: 2006-06-14
catalogue number: KFCA-10005
type: Release

恋と水着と太陽と～スミレ島ライフセーバーず～ オリジナルサウンドトラック
created: 2010-11-10
name: Koi to Mizugi to Taiyo to ~Sumire-jima Life Savers~ Original Soundtrack
catalogue number: FPBD-0164
type: Release
date published: 2010-11-10
type: MusicAlbum
creator: Riyu Kosaka
by artist: Riyu Kosaka

SEVEN's CODE ZERO Vol.5
type: Composition

D7 seven keys
date published: 2004-08-15
catalogue number: DVSP-0018
type: Release
type: MusicAlbum
created: 2004-08-15
tribute to: Riyu Kosaka

Dance Dance Revolution SuperNOVA Original Soundtrack
type: Composition

beatmaniaIIDX 14 GOLDオリジナルサウンドトラック
creator: Riyu Kosaka
name: beatmania IIDX 14 GOLD ORIGINAL SOUNDTRACK
type: MusicAlbum
catalogue number: LC1554~5
type: Release
created: 2007-07-02
by artist: Riyu Kosaka
date published: 2007-07-02

6NOTES / BeForU
type: Composition

every struggle / 小坂りゆ
type: MusicAlbum
type: Release
title: every struggle / Riyu Kosaka
catalogue number: AVCA-26652
by artist: Riyu Kosaka
creator: Riyu Kosaka
date published: 2008-02-27
created: 2008-02-27

CROSS†CHANNEL ~In memory of all people~ SPECIAL SOUNDTRACK
creator: Riyu Kosaka
type: MusicAlbum
type: Release
by artist: Riyu Kosaka
catalogue number: FPBD-0176
date published: 2011-03-31
created: 2011-03-31

every struggle / Riyu Kosaka [with DVD]
name: every struggle / 小坂りゆ
type: Composition

V-RARE SOUNDTRACK 10 - beatmaniaIIDX 9th style
type: Performance

ギターフリークス ナインスミックス アンド ドラムマニア エイスミックス サウンドトラックス
name: GUITARFREAKS 9thMIX & drummania 8thMIX SOUNDTRACKS
type: Composition

Strike Party!!! / BeForU [CD+DVD]
type: Performance

beatmania IIDX 12 HAPPY SKY ORIGINAL SOUNDTRACK
type: Performance

SEVEN's CODE ZERO Vol.6
type: Performance

V-RARE SOUNDTRACK - DDRMAX -Dance Dance Revolution 6thMIX-
date published: 2002-05-16
by artist: Riyu Kosaka
created: 2002-05-16
catalogue number: WIZ-D0002
type: MusicAlbum
type: Release
creator: Riyu Kosaka

CROSS†CHANNEL ~In memory of all people~ SPECIAL SOUNDTRACK
type: Composition

BeForU
type: MusicAlbum
creator: Riyu Kosaka
by artist: Riyu Kosaka
created: 2003-11-28
name: ビー・フォー・ユー
type: Release
catalogue number: LC1248
date published: 2003-11-28

DanceDanceRevolution PartyCollection ORIGINAL SOUNDTRACK
title: ダンスダンスレボリューション パーティーコレクション オリジナル・サウンドトラック
type: Composition

beatmania IIDX 14 GOLD ORIGINAL SOUNDTRACK
type: Composition
name: beatmaniaIIDX 14 GOLDオリジナルサウンドトラック

Sky Girls ~Opening Theme "Baby's Tears/Riyu Kosaka" & Original Soundtrack~
title: スカイガールズ~オープニングテーマ「Baby's Tears/小坂りゆ」&オリジナルサウンドトラック~
type: Composition

V-RARE SOUNDTRACK - DDRMAX -Dance Dance Revolution 6thMIX-
type: Composition

Ourpath from Diverse System
tribute to: Riyu Kosaka
type: Release
created: 2005-12-30
date published: 2005-12-30
type: MusicAlbum
catalogue number: DVSP-0028~31

ギターフリークス・ブイ アンド ドラムマニア・ブイ サウンドトラックス
name: GuitarFreaksV & DrumManiaV Soundtracks
type: Composition

はるかなレシーブ キャラクターソングCD3
title: HARUKANA RECEIVE CHARACTER SONG CD 3
type: Composition

DanceDanceRevolution SuperNOVA2 Original Soundtrack
type: MusicAlbum
type: Release
catalogue number: LC1623~4
creator: Riyu Kosaka
by artist: Riyu Kosaka
date published: 2008-02-21
created: 2008-02-21

ONGEKI Vocal Best
type: Performance

SEVEN 〜漆戒〜 / NAOKI feat.小坂りゆ
title: SEVEN ~Shikkai~ / NAOKI feat. Riyu Kosaka
type: Composition

GUITARFREAKS 10thMIX & drummania 9thMIX Soundtracks
catalogue number: KOLA-051
name: ギターフリークス テンスミックス アンド ドラムマニア ナインスミックス サウンドトラックス
by artist: Riyu Kosaka
type: Release
created: 2003-12-17
date published: 2003-12-17
type: MusicAlbum
creator: Riyu Kosaka

カオス上等!!誰得?俺得! avex レアニメソング コレクション ガールズサイド
name: Chaos Joutou!! Daretoku? Oretoku! avex Rare Anime Song Collection -GIRLS SIDE-
type: Composition

ココロの跡 / 小坂りゆ
name: Kokoro no Ato / Riyu Kosaka
type: Composition

CLAYMORE TV Animation O. S. T.
catalogue number: AVCA-26398
type: MusicAlbum
by artist: Riyu Kosaka
creator: Riyu Kosaka
date published: 2007-07-25
type: Release
created: 2007-07-25

beatmania IIDX 11 IIDX RED Original Soundtrack
by artist: Riyu Kosaka
created: 2005-02-02
type: MusicAlbum
creator: Riyu Kosaka
type: Release
catalogue number: KOLA-092~3
date published: 2005-02-02

every struggle / 小坂りゆ
name: every struggle / Riyu Kosaka
type: Performance

D7 OTHER MIXTURE
type: Composition

BeForU III ~Breaking Into The Probability Changes~
type: Performance

HARUKANA RECEIVE CHARACTER SONG CD 5
type: Composition
name: はるかなレシーブ キャラクターソングCD5

pop'n music 12 Iroha AC ♥ CS pop'n music 10
type: Performance
name: pop'n music 12 いろは AC ♥ CS pop'n music 10

SEVEN 〜漆戒〜 / NAOKI feat.小坂りゆ
name: SEVEN ~Shikkai~ / NAOKI feat. Riyu Kosaka
by artist: Riyu Kosaka
performer: Riyu Kosaka
type: Performance

舞台『PERSONA3 the Weird Masquerade』〜Graduation〜 CD
name: PERSONA3 the Weird Masquerade Graduation
type: Composition

HARUKANA RECEIVE CHARACTER SONG CD 4
date published: 2018-12-21
by artist: Riyu Kosaka
title: はるかなレシーブ キャラクターソングCD4
catalogue number: ZMXZ-12474
type: MusicAlbum
type: Release
created: 2018-12-21
creator: Riyu Kosaka

仮面ライダー THE NEXT オリジナルサウンドトラック
name: MASKED RIDER THE NEXT ORIGINAL SOUNDTRACK @en
name: Kamen Rider THE NEXT Original Soundtrack
type: Performance

Live5pb.2010 @JCB Hall
performer: Riyu Kosaka
by artist: Riyu Kosaka
type: Performance

ギターフリークス ブイスリー アンド ドラムマニア ブイスリー サウンドトラックス
created: 2007-03-08
name: GUITARFREAKS V3 & DRUMMANIA V3 SOUNDTRACKS
date published: 2007-03-08
type: Release
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: MusicAlbum
catalogue number: LC1539~40

もっけ オリジナルサウンドトラック 其ノオンガク
title: Mokke Original Soundtrack Sono Ongaku
date published: 2008-09-26
by artist: Riyu Kosaka
created: 2008-09-26
catalogue number: AVBA-26604B
type: MusicAlbum
type: Release
creator: Riyu Kosaka

Saisho no MELODY / Riyu Kosaka
name: 最初のMELODY / 小坂りゆ
type: Performance

ポップンミュージック9 エーシー ♥ シーエス ポップンミュージック7
name: pop'n music 9 AC ♥ CS pop'n music 7
type: Performance

はるかなレシーブ キャラクターソングCD5
name: HARUKANA RECEIVE CHARACTER SONG CD 5
by artist: Riyu Kosaka
catalogue number: ZMXZ-12475
created: 2019-01-30
type: MusicAlbum
creator: Riyu Kosaka
type: Release
date published: 2019-01-30

DanceDanceRevolution SuperNOVA2 Original Soundtrack
type: Composition

maimai DX Best Album Chiho 2
type: Release
catalogue number: WM-0872~5
created: 2023-11-25
title: maimai でらっくす ベストアルバムちほー2
creator: Riyu Kosaka
type: MusicAlbum
date published: 2023-11-25
by artist: Riyu Kosaka

KI·SE·KI / Be For U
type: Composition

ONGEKI Vocal Best
date published: 2021-12-22
type: MusicAlbum
catalogue number: ZMCZ-14991
type: Release
creator: Riyu Kosaka
by artist: Riyu Kosaka
created: 2021-12-22

はるかなレシーブ キャラクターソングCD4
title: HARUKANA RECEIVE CHARACTER SONG CD 4
type: Composition

Dance Dance Revolution HOTTEST PARTY Original Soundtrack
type: MusicAlbum
type: Release
creator: Riyu Kosaka
by artist: Riyu Kosaka
catalogue number: LC1604~5
date published: 2007-10-25
created: 2007-10-25

DDRMAX2 オリジナル・サウンドトラック
type: Performance
name: DDRMAX2 ORIGINAL SOUNDTRACK

Amatsu Misora ni! Soundtrack
name: あまつみそらに！サウンドトラック
type: Composition

SEVEN 〜漆戒〜 / NAOKI feat.小坂りゆ
title: SEVEN ~Shikkai~ / NAOKI feat. Riyu Kosaka
type: MusicAlbum
by artist: Riyu Kosaka
catalogue number: bigup13132601
created: 2020-10-28
creator: Riyu Kosaka
type: Release
date published: 2020-10-28

仮面ライダー THE NEXT オリジナルサウンドトラック
date published: 2007-10-24
type: MusicAlbum
name: MASKED RIDER THE NEXT ORIGINAL SOUNDTRACK @en
catalogue number: AVCA-26563
name: Kamen Rider THE NEXT Original Soundtrack
type: Release
creator: Riyu Kosaka
created: 2007-10-24
by artist: Riyu Kosaka

GUITARFREAKS 8thMIX & drummania 7thMIX Soundtracks
name: ギターフリークス エイスミックス アンド ドラムマニア セブンスミックス サウンドトラックス
type: Composition

ギターフリークス・ブイ アンド ドラムマニア・ブイ サウンドトラックス
type: MusicAlbum
date published: 2005-07-06
created: 2005-07-06
name: GuitarFreaksV & DrumManiaV Soundtracks
catalogue number: GFCA-1~2
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: Release

SEVEN's CODE ZERO Vol.1
type: MusicAlbum
catalogue number: FLET-2002
type: Release
creator: Riyu Kosaka
created: 2020-10-21
date published: 2020-10-21
by artist: Riyu Kosaka

VTuber SPEED
type: Composition

NAOKI MUSIC REINCARNATION
catalogue number: RRRR-001
type: MusicAlbum
creator: Riyu Kosaka
type: Release
date published: 2025-08-17
created: 2025-08-17
by artist: Riyu Kosaka

Dance Dance Revolution SuperNOVA
type: Performance

BEMANI BEST for the 10th anniversary
type: Performance

ギターフリークス テンスミックス アンド ドラムマニア ナインスミックス サウンドトラックス
title: GUITARFREAKS 10thMIX & drummania 9thMIX Soundtracks
type: Composition

Wish me luck!!!! / 大空遥(CV:優木かな)、比嘉かなた(CV:宮下早紀)、トーマス・紅愛(CV:種崎敦美)、トーマス・恵美理(CV:末柄里恵)
name: Wish me luck!!!! / Haruka Ozora (CV: Kana Yuuki), Kanata Higa (CV: Saki Miyashita), Claire Thomas (CV: Atsumi Tanezaki), Emily Thomas (CV: Rie Suegara)
type: Performance

every struggle / Riyu Kosaka [with DVD]
type: Performance
name: every struggle / 小坂りゆ

DDRMAX ORIGINAL SOUNDTRACK
type: MusicAlbum
date published: 2001-11-21
name: DDRMAX オリジナル・サウンドトラック
catalogue number: TOCP-64144~5
type: Release
created: 2001-11-21
creator: Riyu Kosaka
by artist: Riyu Kosaka

Fragments // Past I -Eternity / NAOKI
type: Performance

V-RARE SOUNDTRACK 5 - DDRMAX2 -Dance Dance Revolution 7thMIX-
performer: Riyu Kosaka
type: Performance
by artist: Riyu Kosaka

Get set GO!! ~BeForU astronauts set~ / BeForU
type: Composition

beatmania IIDX 10th style ORIGINAL SOUNDTRACK
type: MusicAlbum
type: Release
catalogue number: KOLA-066~7
by artist: Riyu Kosaka
creator: Riyu Kosaka
created: 2004-05-19
date published: 2004-05-19

maimai DX Best Album Chiho 2
name: maimai でらっくす ベストアルバムちほー2
type: Composition

BeForU III ~Breaking Into The Probability Changes~ [CD+DVD]
type: Composition

最初のMELODY / 小坂りゆ
catalogue number: FVCG-1177
by artist: Riyu Kosaka
creator: Riyu Kosaka
name: Saisho no MELODY / Riyu Kosaka
type: Release
type: MusicAlbum
created: 2011-10-26
date published: 2011-10-26

ギターフリークス テンスミックス アンド ドラムマニア ナインスミックス サウンドトラックス
title: GUITARFREAKS 10thMIX & drummania 9thMIX Soundtracks
type: Performance

TEARED
type: Composition

Strike Party!!! / BeForU [CD+DVD]
type: Composition

DDRMAX2 オリジナル・サウンドトラック
name: DDRMAX2 ORIGINAL SOUNDTRACK
type: Composition

begin / 小坂りゆ
title: begin / Riyu Kosaka
type: Performance

DanceDanceRevolution 20th Anniversary Non Stop Mix Mixed by DJ KOO
created: 2019-03-03
by artist: Riyu Kosaka
date published: 2019-03-03
type: Release
catalogue number: QWCE-90020
type: MusicAlbum
creator: Riyu Kosaka

はるかなレシーブ キャラクターソングCD5
name: HARUKANA RECEIVE CHARACTER SONG CD 5
type: Performance

VVGO Cry About It
type: Performance

ギターフリークス ナインスミックス アンド ドラムマニア エイスミックス サウンドトラックス
name: GUITARFREAKS 9thMIX & drummania 8thMIX SOUNDTRACKS
type: Performance

Red Rocket Rising / BeForU
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: MusicAlbum
type: Release
catalogue number: AVCA-26007/B
created: 2006-11-01
date published: 2006-11-01

begin / 小坂りゆ
name: begin / Riyu Kosaka
type: Composition

スカイガールズ ~ゼロ、ふたたび~ Original Soundtrack
by artist: Riyu Kosaka
type: MusicAlbum
date published: 2015-10-28
created: 2015-10-28
name: SKYGIRLS ~Zero, Again~ Original Soundtrack
creator: Riyu Kosaka
type: Release
catalogue number: N/A

DanceDanceRevolutionEXTREME ORIGINAL SOUNDTRACK
name: ダンス・ダンス・レボリューションEXTREME オリジナル・サウンドトラック
type: Performance

ギターフリークス・ブイ アンド ドラムマニア・ブイ サウンドトラックス
type: Performance
name: GuitarFreaksV & DrumManiaV Soundtracks

GENESiS RE:BUiLD 01
type: Performance

BeForU III ~Breaking Into The Probability Changes~ [CD+DVD]
catalogue number: AVCA-26225/B
creator: Riyu Kosaka
by artist: Riyu Kosaka
date published: 2007-03-14
created: 2007-03-14
type: Release
type: MusicAlbum

あまつみそらに！サウンドトラック
type: MusicAlbum
title: Amatsu Misora ni! Soundtrack
by artist: Riyu Kosaka
date published: 2010-07-30
created: 2010-07-30
type: Release
catalogue number: FVCG-1117
creator: Riyu Kosaka

ダンス・ダンス・レボリューション フェスティバル&ストライク オリジナル・サウンドトラック
name: DDR FESTIVAL & Dance Dance Revolution STRIKE ORIGINAL SOUNDTRACK @en
name: Dance Dance Revolution FESTIVAL & STRIKE ORIGINAL SOUNDTRACK
type: Composition

BEMANI BEST for the 10th anniversary
type: Composition

SEVEN's CODE ZERO Vol.1
type: Composition

beatmania IIDX 9th style Original Soundtrack
type: Performance

Dynamite Dynamite Rev. NAOKI SPECIAL ALBUM
type: Composition

V-RARE SOUNDTRACK 5 - DDRMAX2 -Dance Dance Revolution 7thMIX-
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: MusicAlbum
type: Release
date published: 2003-04-24
catalogue number: V-RARE ST005
created: 2003-04-24

begin / 小坂りゆ
catalogue number: LC1280
date published: 2004-06-11
name: begin / Riyu Kosaka
creator: Riyu Kosaka
by artist: Riyu Kosaka
created: 2004-06-11
type: Release
type: MusicAlbum

DanceDanceRevolution X2 Original Soundtrack
type: Composition

Strike Party!!! / BeForU
type: Composition

TEARED
type: MusicAlbum
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: Release
date published: 2020-08-13
created: 2020-08-13
catalogue number: TMCCD-040

true... / Riyu Kosaka
date published: 2001-10-17
name: 小坂りゆ - true...
catalogue number: TOCP-4140
type: MusicAlbum
created: 2001-10-17
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: Release

恋と水着と太陽と～スミレ島ライフセーバーず～ オリジナルサウンドトラック
performer: Riyu Kosaka
title: Koi to Mizugi to Taiyo to ~Sumire-jima Life Savers~ Original Soundtrack
type: Performance
by artist: Riyu Kosaka

Saisho no MELODY / Riyu Kosaka
type: Composition
title: 最初のMELODY / 小坂りゆ

Dance Dance Revolution SuperNOVA
catalogue number: N/A
date published: 2007-07-03
created: 2007-07-03
by artist: Riyu Kosaka
type: MusicAlbum
type: Release
creator: Riyu Kosaka

あまつみそらに！サウンドトラック
performer: Riyu Kosaka
title: Amatsu Misora ni! Soundtrack
type: Performance
by artist: Riyu Kosaka

pop'n music 12 Iroha AC ♥ CS pop'n music 10
title: pop'n music 12 いろは AC ♥ CS pop'n music 10
type: Composition

VVGO Cry About It
type: MusicAlbum
catalogue number: N/A
type: Release
tribute to: Riyu Kosaka
created: 2025-07-18
date published: 2025-07-18

Dance Dance Revolution EXTREME Premium CD
type: Performance

Dynamite Dynamite Rev. NAOKI SPECIAL ALBUM
type: Performance

SEVEN's CODE ZERO Vol.5
created: 2020-12-25
type: MusicAlbum
by artist: Riyu Kosaka
date published: 2020-12-25
catalogue number: FLET-2006
creator: Riyu Kosaka
type: Release

Red Rocket Rising / BeForU
type: Performance

beatmaniaIIDX 14 GOLDオリジナルサウンドトラック
title: beatmania IIDX 14 GOLD ORIGINAL SOUNDTRACK
type: Performance

Chaos Joutou!! Daretoku? Oretoku! avex Rare Anime Song Collection -GIRLS SIDE-
title: カオス上等!!誰得?俺得! avex レアニメソング コレクション ガールズサイド
created: 2013-03-13
type: MusicAlbum
type: Release
date published: 2013-03-13
catalogue number: AVCD-38694
creator: Riyu Kosaka
by artist: Riyu Kosaka

SKYGIRLS ~Zero, Again~ Original Soundtrack
title: スカイガールズ ~ゼロ、ふたたび~ Original Soundtrack
type: Performance

Dance Dance Revolution HOTTEST PARTY Original Soundtrack
type: Performance

Danzai no Hana ~Guilty Sky~ / Riyu Kosaka
title: Guilty Flower ~Guilty Sky~ / Riyu Kosaka [with DVD] @en
date published: 2007-05-30
creator: Riyu Kosaka
by artist: Riyu Kosaka
title: 断罪の花～Guilty Sky～ / 小坂りゆ
catalogue number: AVCA-26297/B
type: Release
type: MusicAlbum
created: 2007-05-30

DanceDanceRevolution 20th Anniversary Non Stop Mix Mixed by DJ KOO
type: Composition

舞台『PERSONA3 the Weird Masquerade』〜Graduation〜 CD
name: PERSONA3 the Weird Masquerade Graduation
date published: 2019-03-05
catalogue number: CLIE-19146
type: MusicAlbum
created: 2019-03-05
type: Release
creator: Riyu Kosaka
by artist: Riyu Kosaka

Wish me luck!!!! / Haruka Ozora (CV: Kana Yuuki), Kanata Higa (CV: Saki Miyashita), Claire Thomas (CV: Atsumi Tanezaki), Emily Thomas (CV: Rie Suegara)
type: Composition
name: Wish me luck!!!! / 大空遥(CV:優木かな)、比嘉かなた(CV:宮下早紀)、トーマス・紅愛(CV:種崎敦美)、トーマス・恵美理(CV:末柄里恵)

HARUKANA RECEIVE CHARACTER SONG CD 4
type: Performance
title: はるかなレシーブ キャラクターソングCD4

SEVEN's CODE ZERO Vol.6
type: Composition

DanceDanceRevolution SuperNOVA2 Original Soundtrack
type: Performance

every struggle / 小坂りゆ
name: every struggle / Riyu Kosaka
type: Composition

V-RARE SOUNDTRACK 5 - DDRMAX2 -Dance Dance Revolution 7thMIX-
type: Composition

SEVEN's CODE ZERO Vol.6
type: Release
type: MusicAlbum
date published: 2021-01-20
catalogue number: FLET-2007
created: 2021-01-20
by artist: Riyu Kosaka
creator: Riyu Kosaka

ONGEKI Vocal Best
type: Composition

Live5pb.2010 @JCB Hall
type: MusicAlbum
type: Release
creator: Riyu Kosaka
by artist: Riyu Kosaka
date published: 2011-04-27
created: 2011-04-27
catalogue number: MHXL-5

beatmania IIDX 10th style ORIGINAL SOUNDTRACK
type: Composition

ココロの跡 / 小坂りゆ
creator: Riyu Kosaka
name: Kokoro no Ato / Riyu Kosaka
by artist: Riyu Kosaka
created: 2007-12-12
type: MusicAlbum
type: Release
catalogue number: AVCA-26588
date published: 2007-12-12

BeForU III ~Breaking Into The Probability Changes~
type: Composition

SEVEN's CODE ZERO Vol.1
type: Performance

Dance Dance Revolution SuperNOVA Limited Edition Music Sampler
type: MusicAlbum
type: Release
catalogue number: V-RARE SOUNDTRACK-8 USA
creator: Riyu Kosaka
by artist: Riyu Kosaka
created: 2006-09-26
date published: 2006-09-26

Tetote×Connect Original Soundtrack
type: Composition
title: テトテ×コネクト Original Soundtrack

PACHISLOT beatmania ORIGINAL SOUNDTRACK
catalogue number: GFCA-117
creator: Riyu Kosaka
by artist: Riyu Kosaka
title: パチスロ ビートマニア オリジナルサウンドトラック
type: MusicAlbum
created: 2008-05-28
date published: 2008-05-28
type: Release

Dance Dance Revolution EXTREME Premium CD
type: Composition

Dance Dance Revolution HOTTEST PARTY
type: Composition

GENESiS RE:BUiLD 01
type: Composition

CLAYMORE TV Animation O. S. T.
type: Composition

BeForU III ~Breaking Into The Probability Changes~
catalogue number: AVCA-26226
date published: 2007-03-14
type: Release
by artist: Riyu Kosaka
creator: Riyu Kosaka
created: 2007-03-14
type: MusicAlbum

スカイガールズ ~ゼロ、ふたたび~ Original Soundtrack
name: SKYGIRLS ~Zero, Again~ Original Soundtrack
type: Composition

ウイ ラブ ウイ [ウイ ラブ ウイニングイレブン]
title: WE♥WE [WE LOVE Winning Eleven]
by artist: Riyu Kosaka
performer: Riyu Kosaka
type: Performance

Live5pb.2010 @JCB Hall
type: Composition

pop'n music 12 いろは AC ♥ CS pop'n music 10
name: pop'n music 12 Iroha AC ♥ CS pop'n music 10
by artist: Riyu Kosaka
created: 2005-04-13
type: MusicAlbum
catalogue number: KOLA-094~6
type: Release
date published: 2005-04-13
creator: Riyu Kosaka

ギターフリークス ブイスリー アンド ドラムマニア ブイスリー サウンドトラックス
name: GUITARFREAKS V3 & DRUMMANIA V3 SOUNDTRACKS
type: Performance

pop'n music 14 FEVER! AC ♥ CS pop'n music 12 Iroha & 13 Carnival
type: Performance
title: pop'n music 14 FEVER! AC ♥ CS pop'n music 12 いろは & 13 カーニバル

Tetote×Connect Original Soundtrack
name: テトテ×コネクト Original Soundtrack
type: Performance

BeForU II
by artist: Riyu Kosaka
type: Release
created: 2006-02-14
creator: Riyu Kosaka
type: MusicAlbum
date published: 2006-02-14
catalogue number: LC1452

Get set GO!! ~BeForU astronauts set~ / BeForU
type: Performance

もっけ オリジナルサウンドトラック 其ノオンガク
title: Mokke Original Soundtrack Sono Ongaku
type: Composition

pop'n music 9 AC ♥ CS pop'n music 7
by artist: Riyu Kosaka
type: MusicAlbum
title: ポップンミュージック9 エーシー ♥ シーエス ポップンミュージック7
date published: 2003-02-05
creator: Riyu Kosaka
type: Release
created: 2003-02-05
catalogue number: KOLA-020~1

GUITARFREAKS 11thMIX & drummania 10thMIX SOUNDTRACKS
name: ギターフリークス イレヴンスミックス アンド ドラムマニア テンスミックス サウンドトラックス
type: Composition

ダンス・ダンス・レボリューション フェスティバル&ストライク オリジナル・サウンドトラック
title: DDR FESTIVAL & Dance Dance Revolution STRIKE ORIGINAL SOUNDTRACK @en
title: Dance Dance Revolution FESTIVAL & STRIKE ORIGINAL SOUNDTRACK
type: Performance

VTuber SPEED
by artist: Riyu Kosaka
type: MusicAlbum
creator: Riyu Kosaka
date published: 2023-04-30
catalogue number: RTTF-0030
created: 2023-04-30
type: Release

D7 seven keys
type: Composition

Dance Dance Revolution HOTTEST PARTY Original Soundtrack
type: Composition

Strike Party!!! / BeForU [CD+DVD]
creator: Riyu Kosaka
type: MusicAlbum
type: Release
by artist: Riyu Kosaka
created: 2007-01-17
catalogue number: AVCA-26115/B
date published: 2007-01-17

パチスロ ビートマニア オリジナルサウンドトラック
name: PACHISLOT beatmania ORIGINAL SOUNDTRACK
type: Performance

Wish me luck!!!! / 大空遥(CV:優木かな)、比嘉かなた(CV:宮下早紀)、トーマス・紅愛(CV:種崎敦美)、トーマス・恵美理(CV:末柄里恵)
catalogue number: ZMCZ-12361
name: Wish me luck!!!! / Haruka Ozora (CV: Kana Yuuki), Kanata Higa (CV: Saki Miyashita), Claire Thomas (CV: Atsumi Tanezaki), Emily Thomas (CV: Rie Suegara)
date published: 2018-08-22
by artist: Riyu Kosaka
creator: Riyu Kosaka
created: 2018-08-22
type: Release
type: MusicAlbum

GUITARFREAKS & drummania BEST TRACKS
title: ギターフリークス&ドラムマニア ベスト・トラックス
by artist: Riyu Kosaka
performer: Riyu Kosaka
type: Performance

Danzai no Hana ~Guilty Sky~ / Riyu Kosaka
type: Release
catalogue number: AVCA-26298
type: MusicAlbum
creator: Riyu Kosaka
title: 断罪の花～Guilty Sky～ / 小坂りゆ
date published: 2007-05-30
name: Guilty Flower ~Guilty Sky~ / Riyu Kosaka @en
created: 2007-05-30
by artist: Riyu Kosaka

See You Again
type: Composition

DDRMAX ORIGINAL SOUNDTRACK
name: DDRMAX オリジナル・サウンドトラック
type: Performance

6NOTES / BeForU
type: Performance

Fragments // Past I -Eternity / NAOKI
type: Composition

Dance Dance Revolution SuperNOVA Limited Edition Music Sampler
type: Performance

DanceDanceRevolution SuperNOVA2
type: Composition

See You Again
type: Release
by artist: Riyu Kosaka
date published: 2023-10-29
created: 2023-10-29
type: MusicAlbum
catalogue number: LVTR-0001~2
creator: Riyu Kosaka

beatmania IIDX 10th style ORIGINAL SOUNDTRACK
type: Performance

ダンス・ダンス・レボリューション フェスティバル&ストライク オリジナル・サウンドトラック
name: DDR FESTIVAL & Dance Dance Revolution STRIKE ORIGINAL SOUNDTRACK @en
by artist: Riyu Kosaka
title: Dance Dance Revolution FESTIVAL & STRIKE ORIGINAL SOUNDTRACK
catalogue number: TOCP-64291~2
type: MusicAlbum
type: Release
created: 2006-02-15
date published: 2006-02-15
creator: Riyu Kosaka

CROSS†CHANNEL ~In memory of all people~ SPECIAL SOUNDTRACK
by artist: Riyu Kosaka
performer: Riyu Kosaka
type: Performance

ダンス・ダンス・レボリューションEXTREME オリジナル・サウンドトラック
type: MusicAlbum
type: Release
title: DanceDanceRevolutionEXTREME ORIGINAL SOUNDTRACK
created: 2003-03-26
by artist: Riyu Kosaka
creator: Riyu Kosaka
catalogue number: TOCP-64204~5
date published: 2003-03-26

KI·SE·KI / Be For U
type: Performance

PACHISLOT beatmania ORIGINAL SOUNDTRACK
title: パチスロ ビートマニア オリジナルサウンドトラック
type: Composition

6NOTES / BeForU
catalogue number: MCBU-0001
type: MusicAlbum
creator: Riyu Kosaka
type: Release
date published: 2007-03-03
created: 2007-03-03
by artist: Riyu Kosaka

pop'n music 14 FEVER! AC ♥ CS pop'n music 12 いろは & 13 カーニバル
type: Release
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: MusicAlbum
name: pop'n music 14 FEVER! AC ♥ CS pop'n music 12 Iroha & 13 Carnival
created: 2006-10-27
date published: 2006-10-27
catalogue number: LC1495~7

GUITARFREAKS 8thMIX & drummania 7thMIX Soundtracks
title: ギターフリークス エイスミックス アンド ドラムマニア セブンスミックス サウンドトラックス
created: 2002-10-23
type: MusicAlbum
catalogue number: KOLA-002
creator: Riyu Kosaka
date published: 2002-10-23
type: Release
by artist: Riyu Kosaka

Ourpath from Diverse System
type: Performance

pop'n music 9 AC ♥ CS pop'n music 7
name: ポップンミュージック9 エーシー ♥ シーエス ポップンミュージック7
type: Composition

Danzai no Hana ~Guilty Sky~ / Riyu Kosaka
title: Guilty Flower ~Guilty Sky~ / Riyu Kosaka [with DVD] @en
title: 断罪の花～Guilty Sky～ / 小坂りゆ
type: Performance

GuitarFreaksV2 & DrumManiaV2 SoundTracks
by artist: Riyu Kosaka
type: MusicAlbum
date published: 2006-04-19
type: Release
catalogue number: GFCA-45~6
created: 2006-04-19
creator: Riyu Kosaka

D7 seven keys
type: Performance

スカイガールズ~オープニングテーマ「Baby's Tears/小坂りゆ」&オリジナルサウンドトラック~
type: Performance
name: Sky Girls ~Opening Theme "Baby's Tears/Riyu Kosaka" & Original Soundtrack~

GuitarFreaksV4 & DrumManiaV4 Rock×Rock Original Soundtracks
type: Performance

Danzai no Hana ~Guilty Sky~ / Riyu Kosaka
name: Guilty Flower ~Guilty Sky~ / Riyu Kosaka @en
type: Composition
name: 断罪の花～Guilty Sky～ / 小坂りゆ

ギターフリークス イレヴンスミックス アンド ドラムマニア テンスミックス サウンドトラックス
date published: 2004-06-23
type: MusicAlbum
name: GUITARFREAKS 11thMIX & drummania 10thMIX SOUNDTRACKS
creator: Riyu Kosaka
catalogue number: KOLA-069~70
type: Release
by artist: Riyu Kosaka
created: 2004-06-23

DanceDanceRevolution SuperNOVA2
type: MusicAlbum
created: 2007-11-27
by artist: Riyu Kosaka
catalogue number: N/A
date published: 2007-11-27
creator: Riyu Kosaka
type: Release

D7 OTHER MIXTURE
type: MusicAlbum
date published: 2004-08-15
created: 2004-08-15
catalogue number: DVSP-0019
tribute to: Riyu Kosaka
type: Release

ONGEKI Vocal Collection 03
type: Release
creator: Riyu Kosaka
by artist: Riyu Kosaka
created: 2019-04-24
catalogue number: ZMCZ-13103
type: MusicAlbum
date published: 2019-04-24

小坂りゆ - true...
by artist: Riyu Kosaka
name: true... / Riyu Kosaka
performer: Riyu Kosaka
type: Performance

Dance Dance Revolution EXTREME Premium CD
type: MusicAlbum
created: 2003-10-09
date published: 2003-10-09
type: Release
catalogue number: DDR-EXTREME
creator: Riyu Kosaka
by artist: Riyu Kosaka

beatmania IIDX 12 HAPPY SKY ORIGINAL SOUNDTRACK
catalogue number: GFCA-30~1
type: Release
created: 2005-10-19
creator: Riyu Kosaka
by artist: Riyu Kosaka
type: MusicAlbum
date published: 2005-10-19

every struggle / 小坂りゆ
type: Release
catalogue number: AVCA-26651/B
title: every struggle / Riyu Kosaka [with DVD]
date published: 2008-02-27
created: 2008-02-27
by artist: Riyu Kosaka
creator: Riyu Kosaka
type: MusicAlbum

true... / Riyu Kosaka
name: 小坂りゆ - true...
type: Composition

BeForU
member: Riyu Kosaka
type: MusicGroup
type: Organization
music group member: Riyu Kosaka

ギターフリークス ブイスリー アンド ドラムマニア ブイスリー サウンドトラックス
name: GUITARFREAKS V3 & DRUMMANIA V3 SOUNDTRACKS
type: Composition

Dance Dance Revolution SuperNOVA Limited Edition Music Sampler
type: Composition