とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT
title: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT
by artist: Koki Seimiya
catalogue number: LACM-24203
type: MusicAlbum
creator: Koki Seimiya
type: Release
created: 2021-10-27
date published: 2021-10-27

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 12 S.E.M
type: Composition

bLACKbLUE / SawanoHiroyuki[nZk]
type: MusicAlbum
created: 2024-10-02
creator: Koki Seimiya
type: Release
date published: 2024-10-02
by artist: Koki Seimiya
catalogue number: VVCL-2584~5

ALL TIME ROCK 'N' ROLL / 鈴木雅之 [初回生産限定盤]
name: ALL TIME ROCK 'N' ROLL / Masayuki Suzuki [Limited Edition]
by artist: Koki Seimiya
date published: 2020-04-15
type: MusicAlbum
type: Release
catalogue number: ESCL-5390~3
creator: Koki Seimiya
created: 2020-04-15

Q-MHz / Q-MHz
type: Performance

Light Our Way (feat. ReoNa)
type: Performance

10% roll, 10% romance / UNISON SQUARE GARDEN
by artist: Koki Seimiya
date published: 2017-08-09
type: MusicAlbum
catalogue number: TFCC-89624
created: 2017-08-09
type: Release
creator: Koki Seimiya

Everlasting Magic / Lapis Re:LiGHTs STARS [Limited Edition]
title: Everlasting Magic / ラピスリライツ・スターズ [初回限定盤]
type: Performance

Light Our Way (feat. ReoNa)
type: Composition

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 06 FRAME
type: Performance

Everlasting Magic / Lapis Re:LiGHTs STARS
type: Composition
name: Everlasting Magic / ラピスリライツ・スターズ

Everlasting Magic / Lapis Re:LiGHTs STARS [Limited Edition]
title: Everlasting Magic / ラピスリライツ・スターズ [初回限定盤]
catalogue number: VIZL-2121
created: 2022-10-26
creator: Koki Seimiya
type: MusicAlbum
type: Release
by artist: Koki Seimiya
date published: 2022-10-26

バンドリ! ガールズバンドパーティ! カバーコレクションVol.8
type: MusicAlbum
creator: Koki Seimiya
name: BanG Dream! Girls Band Party! Cover collection Vol.8
catalogue number: BRMM-10688
type: Release
created: 2023-09-06
by artist: Koki Seimiya
date published: 2023-09-06

THE IDOLM@STER SideM 5th ANNIVERSARY DISC 04 FRAME & S.E.M & Legenders
created: 2020-03-18
catalogue number: LACM-14915
by artist: Koki Seimiya
type: Release
date published: 2020-03-18
type: MusicAlbum
creator: Koki Seimiya

とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [アニメ盤]
created: 2021-10-27
name: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Anime Edition]
type: Release
creator: Koki Seimiya
type: MusicAlbum
catalogue number: LACM-24204
by artist: Koki Seimiya
date published: 2021-10-27

bLACKbLUE / SawanoHiroyuki[nZk]
type: Composition

Q-MHz / Q-MHz
type: Release
created: 2016-01-27
catalogue number: TFCC-86538
creator: Koki Seimiya
type: MusicAlbum
date published: 2016-01-27
by artist: Koki Seimiya

Ambitious / Superfly
type: Performance

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 15 Legenders
by artist: Koki Seimiya
date published: 2025-05-14
created: 2025-05-14
type: MusicAlbum
catalogue number: LACA-19119~20
creator: Koki Seimiya
type: Release

とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [正位置ver.]
type: Release
name: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Seiichi ver.]
creator: Koki Seimiya
type: MusicAlbum
catalogue number: LACM-34203
by artist: Koki Seimiya
created: 2021-10-27
date published: 2021-10-27

UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ Original Soundtrack
name: UCHITAMA?! Have you seen my Tama? Original Soundtrack @en
type: Performance
title: うちタマ?! ～うちのタマ知りませんか?～ オリジナルサウンドトラック

mirror / 富金原佑菜
name: mirror / Yuna Fukinbara
type: Performance

とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT
name: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT
type: Composition

Koki Seimiya
made: ALL TIME ROCK 'N' ROLL / 鈴木雅之 [初回生産限定盤]
album: バンドリ! ガールズバンドパーティ! カバーコレクションVol.8
made: THE IDOLM@STER SideM 5th ANNIVERSARY DISC 04 FRAME & S.E.M & Legenders
album: 10% roll, 10% romance / UNISON SQUARE GARDEN
made: Light Our Way (feat. ReoNa)
made: Invisible Sensation / UNISON SQUARE GARDEN
made: バンドリ! ガールズバンドパーティ! カバーコレクションVol.8
type: MusicGroup
album: bLACKbLUE / SawanoHiroyuki[nZk] [Limited Edition]
album: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [アニメ盤]
made: fake town baby / UNISON SQUARE GARDEN [Limited Edition]
made: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT
album: THE IDOLM@STER SideM 5th ANNIVERSARY SOLO COLLECTION 03
album: fake town baby / UNISON SQUARE GARDEN
made: THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 15 Legenders
album: Ambitious / Superfly
made: 怪人開発部の黒井津さん・愛と勤労の音楽集
made: THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 06 FRAME
made: 10% roll, 10% romance / UNISON SQUARE GARDEN
album: UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ Original Soundtrack
made: mirror / 富金原佑菜
made: Ambitious / Superfly
made: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [逆位置ver.]
album: 忘れらんない日々のこと / Afterglow
made: Ambitious / Superfly [Limited Edition]
album: 10% roll, 10% romance / UNISON SQUARE GARDEN [Limited Edition]
made: THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 12 S.E.M
made: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [正位置ver.]
type: Person
album: Q-MHz / Q-MHz
made: Everlasting Magic / Lapis Re:LiGHTs STARS
album: ALL TIME ROCK 'N' ROLL / 鈴木雅之
album: Everlasting Magic / Lapis Re:LiGHTs STARS
made: UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ Original Soundtrack
made: Q-MHz / Q-MHz
made: 忘れらんない日々のこと / Afterglow
made: ALL TIME ROCK 'N' ROLL / 鈴木雅之
album: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT
album: fake town baby / UNISON SQUARE GARDEN [Limited Edition]
album: THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 15 Legenders
album: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [正位置ver.]
album: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [逆位置ver.]
album: 怪人開発部の黒井津さん・愛と勤労の音楽集
album: Invisible Sensation / UNISON SQUARE GARDEN
made: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [アニメ盤]
album: THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 12 S.E.M
album: THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 06 FRAME
album: Light Our Way (feat. ReoNa)
album: bLACKbLUE / SawanoHiroyuki[nZk]
album: mirror / 富金原佑菜
album: Ambitious / Superfly [Limited Edition]
album: UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ DRAMA CD: Hanasaki Momo no Music Radio ~Dai-1-ya~
made: bLACKbLUE / SawanoHiroyuki[nZk] [Limited Edition]
made: 10% roll, 10% romance / UNISON SQUARE GARDEN [Limited Edition]
album: ALL TIME ROCK 'N' ROLL / 鈴木雅之 [初回生産限定盤]
made: UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ DRAMA CD: Hanasaki Momo no Music Radio ~Dai-1-ya~
made: fake town baby / UNISON SQUARE GARDEN
made: THE IDOLM@STER SideM 5th ANNIVERSARY SOLO COLLECTION 03
album: Everlasting Magic / Lapis Re:LiGHTs STARS [Limited Edition]
made: Everlasting Magic / Lapis Re:LiGHTs STARS [Limited Edition]
made: bLACKbLUE / SawanoHiroyuki[nZk]
album: THE IDOLM@STER SideM 5th ANNIVERSARY DISC 04 FRAME & S.E.M & Legenders

Everlasting Magic / Lapis Re:LiGHTs STARS
type: MusicAlbum
name: Everlasting Magic / ラピスリライツ・スターズ
creator: Koki Seimiya
created: 2022-10-26
catalogue number: VICL-65743
date published: 2022-10-26
by artist: Koki Seimiya
type: Release

10% roll, 10% romance / UNISON SQUARE GARDEN
type: Performance

Ambitious / Superfly [Limited Edition]
type: Composition

バンドリ! ガールズバンドパーティ! カバーコレクションVol.8
type: Composition
title: BanG Dream! Girls Band Party! Cover collection Vol.8

mirror / 富金原佑菜
type: Release
by artist: Koki Seimiya
date published: 2022-04-13
catalogue number: SRML-1036
title: mirror / Yuna Fukinbara
creator: Koki Seimiya
type: MusicAlbum
created: 2022-04-13

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 15 Legenders
type: Performance

THE IDOLM@STER SideM 5th ANNIVERSARY SOLO COLLECTION 03
type: Performance

ALL TIME ROCK 'N' ROLL / 鈴木雅之
name: ALL TIME ROCK 'N' ROLL / Masayuki Suzuki
type: Release
date published: 2020-04-15
creator: Koki Seimiya
created: 2020-04-15
by artist: Koki Seimiya
type: MusicAlbum
catalogue number: ESCL-5394~6

mirror / 富金原佑菜
type: Composition
name: mirror / Yuna Fukinbara

UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ Original Soundtrack
name: UCHITAMA?! Have you seen my Tama? Original Soundtrack @en
type: Composition
title: うちタマ?! ～うちのタマ知りませんか?～ オリジナルサウンドトラック

Light Our Way (feat. ReoNa)
type: MusicAlbum
catalogue number: N/A
date published: 2025-09-29
by artist: Koki Seimiya
type: Release
created: 2025-09-29
creator: Koki Seimiya

UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ Original Soundtrack
by artist: Koki Seimiya
type: Release
catalogue number: SVWC-70486
name: UCHITAMA?! Have you seen my Tama? Original Soundtrack @en
type: MusicAlbum
title: うちタマ?! ～うちのタマ知りませんか?～ オリジナルサウンドトラック
creator: Koki Seimiya
date published: 2020-03-25
created: 2020-03-25

10% roll, 10% romance / UNISON SQUARE GARDEN [Limited Edition]
date published: 2017-08-09
type: MusicAlbum
catalogue number: TFCC-89623
by artist: Koki Seimiya
type: Release
created: 2017-08-09
creator: Koki Seimiya

bLACKbLUE / SawanoHiroyuki[nZk]
type: Performance

Invisible Sensation / UNISON SQUARE GARDEN
creator: Koki Seimiya
type: Release
date published: 2017-11-08
by artist: Koki Seimiya
created: 2017-11-08
catalogue number: TFCC-89640
type: MusicAlbum

Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Seiichi ver.]
title: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [正位置ver.]
type: Composition

うちタマ?! 〜うちのタマ知りませんか?〜 DRAMA CD 花咲モモのミュージックレディオ ～第1夜～
name: UCHITAMA ?! DRAMA CD: Momo's Music Radio -1- @en
type: Composition
title: UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ DRAMA CD: Hanasaki Momo no Music Radio ~Dai-1-ya~

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 12 S.E.M
type: MusicAlbum
created: 2025-04-02
creator: Koki Seimiya
type: Release
date published: 2025-04-02
by artist: Koki Seimiya
catalogue number: LACA-19113~4

とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [アニメ盤]
title: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Anime Edition]
type: Performance

忘れらんない日々のこと / Afterglow
name: Wasurerannai Hibi no Koto / Afterglow [Limited Edition]
type: Performance

ALL TIME ROCK 'N' ROLL / Masayuki Suzuki [Limited Edition]
type: Composition
name: ALL TIME ROCK 'N' ROLL / 鈴木雅之 [初回生産限定盤]

fake town baby / UNISON SQUARE GARDEN [Limited Edition]
creator: Koki Seimiya
type: Release
name: fake town baby / UNISON SQUARE GARDEN [初回限定盤]
type: MusicAlbum
created: 2017-11-15
by artist: Koki Seimiya
catalogue number: TFCC-89641
date published: 2017-11-15

fake town baby / UNISON SQUARE GARDEN [初回限定盤]
name: fake town baby / UNISON SQUARE GARDEN [Limited Edition]
type: Composition

THE IDOLM@STER SideM 5th ANNIVERSARY DISC 04 FRAME & S.E.M & Legenders
type: Performance

bLACKbLUE / SawanoHiroyuki[nZk] [Limited Edition]
type: Composition

Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Gyakuichi ver.]
type: Performance
name: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [逆位置ver.]

THE IDOLM@STER SideM 5th ANNIVERSARY DISC 04 FRAME & S.E.M & Legenders
type: Composition

THE IDOLM@STER SideM 5th ANNIVERSARY SOLO COLLECTION 03
type: Composition

ALL TIME ROCK 'N' ROLL / 鈴木雅之
name: ALL TIME ROCK 'N' ROLL / Masayuki Suzuki
type: Performance

Kaijin Kaihatsubu no Kuroitsu-san: Ai to Kinrou no Ongakushuu
title: 怪人開発部の黒井津さん・愛と勤労の音楽集
title: Miss KUROITSU from the Monster Development Department: Ai to Kinrou no Ongakushuu @en
type: Performance

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 15 Legenders
type: Composition

UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ DRAMA CD: Hanasaki Momo no Music Radio ~Dai-1-ya~
name: UCHITAMA ?! DRAMA CD: Momo's Music Radio -1- @en
type: MusicAlbum
title: うちタマ?! 〜うちのタマ知りませんか?〜 DRAMA CD 花咲モモのミュージックレディオ ～第1夜～
date published: 2020-06-24
by artist: Koki Seimiya
type: Release
catalogue number: ANZX-13716
creator: Koki Seimiya
created: 2020-06-24

10% roll, 10% romance / UNISON SQUARE GARDEN [Limited Edition]
type: Composition

忘れらんない日々のこと / Afterglow
type: MusicAlbum
name: Wasurerannai Hibi no Koto / Afterglow [Limited Edition]
catalogue number: BRMM-10763
by artist: Koki Seimiya
date published: 2024-04-03
created: 2024-04-03
type: Release
creator: Koki Seimiya

ALL TIME ROCK 'N' ROLL / Masayuki Suzuki [Limited Edition]
type: Performance
title: ALL TIME ROCK 'N' ROLL / 鈴木雅之 [初回生産限定盤]

fake town baby / UNISON SQUARE GARDEN
type: Performance

うちタマ?! 〜うちのタマ知りませんか?〜 DRAMA CD 花咲モモのミュージックレディオ ～第1夜～
name: UCHITAMA ?! DRAMA CD: Momo's Music Radio -1- @en
type: Performance
name: UCHITAMA?! ~Uchi no Tama Shirimasen ka?~ DRAMA CD: Hanasaki Momo no Music Radio ~Dai-1-ya~

fake town baby / UNISON SQUARE GARDEN
type: Composition

とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [アニメ盤]
title: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Anime Edition]
type: Composition

fake town baby / UNISON SQUARE GARDEN [初回限定盤]
name: fake town baby / UNISON SQUARE GARDEN [Limited Edition]
type: Performance

10% roll, 10% romance / UNISON SQUARE GARDEN [Limited Edition]
type: Performance

Everlasting Magic / Lapis Re:LiGHTs STARS
title: Everlasting Magic / ラピスリライツ・スターズ
type: Performance

THE IDOLM@STER SideM 5th ANNIVERSARY SOLO COLLECTION 03
date published: 2020-08-26
by artist: Koki Seimiya
type: MusicAlbum
type: Release
creator: Koki Seimiya
created: 2020-08-26
catalogue number: LACZ-10039

とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT
type: Performance
name: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT

Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Seiichi ver.]
title: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [正位置ver.]
type: Performance

怪人開発部の黒井津さん・愛と勤労の音楽集
type: MusicAlbum
created: 2022-04-04
title: Kaijin Kaihatsubu no Kuroitsu-san: Ai to Kinrou no Ongakushuu
title: Miss KUROITSU from the Monster Development Department: Ai to Kinrou no Ongakushuu @en
catalogue number: RQCD-0001
creator: Koki Seimiya
type: Release
date published: 2022-04-04
by artist: Koki Seimiya

Q-MHz / Q-MHz
type: Composition

bLACKbLUE / SawanoHiroyuki[nZk] [Limited Edition]
type: Performance

Wasurerannai Hibi no Koto / Afterglow [Limited Edition]
name: 忘れらんない日々のこと / Afterglow
type: Composition

ALL TIME ROCK 'N' ROLL / Masayuki Suzuki
title: ALL TIME ROCK 'N' ROLL / 鈴木雅之
type: Composition

Ambitious / Superfly [Limited Edition]
type: Performance

Ambitious / Superfly
created: 2019-06-12
by artist: Koki Seimiya
type: Release
date published: 2019-06-12
type: MusicAlbum
catalogue number: WPCL-13049
creator: Koki Seimiya

Invisible Sensation / UNISON SQUARE GARDEN
type: Performance

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 06 FRAME
catalogue number: LACA-19101~2
type: MusicAlbum
creator: Koki Seimiya
created: 2025-01-08
date published: 2025-01-08
by artist: Koki Seimiya
type: Release

Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Gyakuichi ver.]
type: Composition
name: とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [逆位置ver.]

Everlasting Magic / Lapis Re:LiGHTs STARS [Limited Edition]
title: Everlasting Magic / ラピスリライツ・スターズ [初回限定盤]
type: Composition

Ambitious / Superfly
type: Composition

とめどない潮騒に僕たちは何を歌うだろうか / ARCANA PROJECT [逆位置ver.]
creator: Koki Seimiya
type: Release
created: 2021-10-27
type: MusicAlbum
name: Tomedonai Shiosai ni Bokutachi wa Nani wo Utau Darou ka / ARCANA PROJECT [Gyakuichi ver.]
by artist: Koki Seimiya
catalogue number: LACM-34204
date published: 2021-10-27

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 06 FRAME
type: Composition

Ambitious / Superfly [Limited Edition]
created: 2019-06-12
by artist: Koki Seimiya
type: MusicAlbum
catalogue number: WPZL-31611~2
creator: Koki Seimiya
date published: 2019-06-12
type: Release

Invisible Sensation / UNISON SQUARE GARDEN
type: Composition

bLACKbLUE / SawanoHiroyuki[nZk] [Limited Edition]
created: 2024-10-02
catalogue number: VVCL-2581~3
date published: 2024-10-02
creator: Koki Seimiya
by artist: Koki Seimiya
type: MusicAlbum
type: Release

fake town baby / UNISON SQUARE GARDEN
type: Release
creator: Koki Seimiya
type: MusicAlbum
created: 2017-11-15
by artist: Koki Seimiya
catalogue number: TFCC-89642
date published: 2017-11-15

birthinfo
place: Tokyo, Japan
principal: Koki Seimiya
date: 1992-11-05
type: Birth

10% roll, 10% romance / UNISON SQUARE GARDEN
type: Composition

BanG Dream! Girls Band Party! Cover collection Vol.8
name: バンドリ! ガールズバンドパーティ! カバーコレクションVol.8
type: Performance

Kaijin Kaihatsubu no Kuroitsu-san: Ai to Kinrou no Ongakushuu
name: Miss KUROITSU from the Monster Development Department: Ai to Kinrou no Ongakushuu @en
name: 怪人開発部の黒井津さん・愛と勤労の音楽集
type: Composition

THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 12 S.E.M
type: Performance