clearly / Yuka Iguchi [Limited Edition]
title: clearly / 井口裕香 [初回生産限定盤]
type: Performance

Orbital Period / Suisei Hoshimachi
type: Release
by artist: Hidekazu Koyama
created: 2025-02-03
creator: Hidekazu Koyama
title: Orbital Period / 星街すいせい
catalogue number: CVRD-530
date published: 2025-02-03
type: MusicAlbum

Never Change feat. Lyu:Lyu / SHUN
type: MusicAlbum
date published: 2014-07-23
type: Release
creator: Hidekazu Koyama
created: 2014-07-23
by artist: Hidekazu Koyama
catalogue number: SECL-1543

何度でも / CIVILIAN
type: MusicAlbum
name: Nandodemo / CIVILIAN [Limited Edition]
catalogue number: SRCL-9846~7
date published: 2018-08-08
type: Release
by artist: Hidekazu Koyama
creator: Hidekazu Koyama
created: 2018-08-08

day to YOU / 岬なこ [初回限定盤]
type: MusicAlbum
title: day to YOU / Nako Misaki [Limited Edition]
catalogue number: LACA-35052
type: Release
by artist: Hidekazu Koyama
created: 2023-07-05
creator: Hidekazu Koyama
date published: 2023-07-05

Nandodemo / CIVILIAN [Limited Edition]
name: 何度でも / CIVILIAN
type: Performance

day to YOU / 岬なこ
type: MusicAlbum
name: day to YOU / Nako Misaki
type: Release
date published: 2023-07-05
by artist: Hidekazu Koyama
created: 2023-07-05
creator: Hidekazu Koyama
catalogue number: LACA-25052

雨の雫 / 別所愛染 (CV:立石凛)
title: Ame no Shizuku / Aise Bessho (CV: Rin Tateishi)
type: Composition

Konoha no Sekai Jijou / Jin ft. Nanou
title: コノハの世界事情 / じん ft. ナノウ
type: Performance

悪魔の弁護人 御子柴礼司 -贖罪の奏鳴曲- サウンド・トラック
name: Akuma no Bengonin: Mikoshiba Reiji -Shokuzai no Someikyoku- SOUND TRACK
type: Composition
creator: Hidekazu Koyama
composer: Hidekazu Koyama

生者ノ行進 / CIVILIAN
type: Release
name: Seija no Koushin / CIVILIAN
created: 2017-03-01
catalogue number: SRCL-9334
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
date published: 2017-03-01
type: MusicAlbum

HATSUNE MIKU 5th BIRTHDAY BEST ~impacts~
created: 2012-08-01
date published: 2012-08-01
name: 初音ミク 5thバースデー ベスト ～impacts～
type: Release
catalogue number: MHCL-2106~7
type: MusicAlbum
by artist: Hidekazu Koyama
creator: Hidekazu Koyama

灯命 / CIVILIAN
catalogue number: SRCL-11805
date published: 2021-06-02
title: Toumei / CIVILIAN
creator: Hidekazu Koyama
type: Release
type: MusicAlbum
by artist: Hidekazu Koyama
created: 2021-06-02

Maou Gakuin no Futekigousha ~Shijou Saikyou no Maou no Shiso, Tensei Shite Shisontachi no Gakkou e Kayou~ Character Song "Dear Descendants" & Original Soundtrack Vol.6
composer: Hidekazu Koyama
type: Composition
title: 魔王学院の不適合者 〜史上最強の魔王の始祖、転生して子孫たちの学校へ通う〜 キャラクターソング「Dear Descendants」& オリジナル・サウンドトラック Vol.6
title: The Misfit of Demon King Academy Character Song "Dear Descendants" & Original Soundtrack Vol.6 @en
creator: Hidekazu Koyama

初音ミク 5thバースデー ベスト ～impacts～
name: HATSUNE MIKU 5th BIRTHDAY BEST ~impacts~
type: Performance

NARUTO THE BEST
type: Performance

千夜想歌 / CIVILIAN
creator: Hidekazu Koyama
name: Senya Souka / CIVILIAN
composer: Hidekazu Koyama
type: Composition

Nandodemo / CIVILIAN
name: 何度でも / CIVILIAN
type: Performance

鹿乃BEST
type: MusicAlbum
catalogue number: SNCL-00053
name: Kano BEST
tribute to: Hidekazu Koyama
type: Release
date published: 2022-01-26
created: 2022-01-26

NARUTO THE BEST
type: Composition

まつりごと / 稲取ひなめ (CV: 鈴木杏奈)
type: Performance
name: Matsurigoto / Hiname Inatori (CV: Anna Suzuki)

正解不正解 / CIVILIAN [期間生産限定盤]
type: Performance
title: Seikai Fuseikai / CIVILIAN [Limited Edition]

akairo / CIVILIAN [Limited Edition]
type: Performance
name: 赫色 -akairo- / CIVILIAN

Seikai Fuseikai / CIVILIAN
created: 2020-08-19
creator: Hidekazu Koyama
name: 正解不正解 / CIVILIAN
catalogue number: SRCL-11490
type: Release
by artist: Hidekazu Koyama
date published: 2020-08-19
type: MusicAlbum

akairo / CIVILIAN
type: Composition
title: 赫色 -akairo- / CIVILIAN

MEKAKUCITY M's 2 ～メカクシティアクターズ・ヴォーカル&サウンド コレクション～
name: MEKAKUCITY M's 2: MEKAKUCITY ACTORS VOCAL & SOUND COLLECTION
type: Performance

birthinfo
type: Birth
place: Tokyo, Japan
principal: Hidekazu Koyama
date: 0000-09-02

灯命 / CIVILIAN [初回生産限定盤]
title: Toumei / CIVILIAN [Limited Edition]
type: Performance

rye / Kano
type: Composition
name: rye / 鹿乃

MEKAKUCITY M's COMPLETE BOX ~MEKAKUCITY ACTORS VOCAL & SOUND COLLECTION~
type: Performance
name: MEKAKUCITY M's COMPLETE BOX @en
title: MEKAKUCITY M's COMPLETE BOX ~メカクシティアクターズ・ヴォーカル&サウンド コレクション~

何度でも / CIVILIAN
name: Nandodemo / CIVILIAN
type: Composition

今この瞬間を / Little Glee Monster
name: Ima Kono Toki wo / Little Glee Monster
type: MusicAlbum
date published: 2023-08-23
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
type: Release
created: 2023-08-23
catalogue number: SRCL-12562

WONDER / soraru [Limited Edition B]
type: Performance
name: ワンダー / そらる [初回限定盤B]

ワンダー / そらる
name: WONDER / soraru
type: Performance

Seikai Fuseikai / CIVILIAN [Limited Edition]
creator: Hidekazu Koyama
title: 正解不正解 / CIVILIAN [期間生産限定盤]
composer: Hidekazu Koyama
type: Composition

Nandodemo / CIVILIAN [Limited Edition]
title: 何度でも / CIVILIAN
type: Composition

Osamuraisan Selection vol.2 ~vocaloid medley~
name: おさむらいさん せれくしょん vol.2 ～vocaloid medley～
type: Performance

clearly / Yuka Iguchi [Limited Edition]
type: Release
title: clearly / 井口裕香 [初回生産限定盤]
creator: Hidekazu Koyama
catalogue number: 1000769388
type: MusicAlbum
date published: 2020-08-12
by artist: Hidekazu Koyama
created: 2020-08-12

千夜想歌 / CIVILIAN
date published: 2021-03-10
catalogue number: SRCL-11639
name: Senya Souka / CIVILIAN
type: MusicAlbum
type: Release
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
created: 2021-03-10

Still Still Stellar / Suisei Hoshimachi [Limited Edition]
name: Still Still Stellar / 星街すいせい [完全生産限定盤]
type: Composition

ワンダー / そらる [初回限定盤B]
title: WONDER / soraru [Limited Edition B]
type: Composition

Ima Kono Toki wo / Little Glee Monster [Limited Edition]
type: MusicAlbum
catalogue number: SRCL-12560~1
date published: 2023-08-23
name: 今この瞬間を / Little Glee Monster [初回生産限定盤]
created: 2023-08-23
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
type: Release

今この瞬間を / Little Glee Monster [初回生産限定盤]
title: Ima Kono Toki wo / Little Glee Monster [Limited Edition]
type: Performance

悪魔の弁護人 御子柴礼司 -贖罪の奏鳴曲- サウンド・トラック
created: 2020-01-15
creator: Hidekazu Koyama
name: Akuma no Bengonin: Mikoshiba Reiji -Shokuzai no Someikyoku- SOUND TRACK
type: Release
date published: 2020-01-15
by artist: Hidekazu Koyama
type: MusicAlbum
catalogue number: XQBZ-1042

25時、ナイトコードで。 SEKAI ALBUM vol.1
name: Nightcord at 25:00 SEKAI ALBUM vol.1 @en
type: Composition
title: 25-ji, Nightcord de. SEKAI ALBUM vol.1

MEKAKUCITY M's COMPLETE BOX ~MEKAKUCITY ACTORS VOCAL & SOUND COLLECTION~
name: MEKAKUCITY M's COMPLETE BOX @en
title: MEKAKUCITY M's COMPLETE BOX ~メカクシティアクターズ・ヴォーカル&サウンド コレクション~
type: Composition

おさむらいさんせれくしょんvol.3～唄ひて弾きて～
name: Osamuraisan Selection vol.3 ~Utaite Hikite~
type: Performance

Konoha no Sekai Jijou / Jin ft. Nanou
title: コノハの世界事情 / じん ft. ナノウ
date published: 2014-09-24
type: MusicAlbum
catalogue number: ANZX-11234
creator: Hidekazu Koyama
type: Release
created: 2014-09-24
by artist: Hidekazu Koyama

day to YOU / Nako Misaki
type: Performance
title: day to YOU / 岬なこ

Never Change feat. Lyu:Lyu / SHUN [Limited Edition]
creator: Hidekazu Koyama
type: Release
by artist: Hidekazu Koyama
date published: 2014-07-23
type: MusicAlbum
created: 2014-07-23
catalogue number: SECL-1541~2

WONDER / soraru [Limited Edition B]
creator: Hidekazu Koyama
name: ワンダー / そらる [初回限定盤B]
type: Release
date published: 2019-07-17
by artist: Hidekazu Koyama
created: 2019-07-17
type: MusicAlbum
catalogue number: TYCT-69152

V-box / まらしぃ
title: V-box / Marasy
catalogue number: DGSA-10051
created: 2012-10-31
date published: 2012-10-31
tribute to: Hidekazu Koyama
type: Release
type: MusicAlbum

初音ミク Project DIVA MEGA39's CDコレクション
catalogue number: 690-0115
type: MusicAlbum
type: Release
creator: Hidekazu Koyama
created: 2020-02-13
name: HATSUNE MIKU PROJECT DIVA MEGA39'S 10TH ANNIVERSARY COLLECTION
date published: 2020-02-13
by artist: Hidekazu Koyama

赫色 -akairo- / CIVILIAN
name: akairo / CIVILIAN [Limited Edition]
type: Composition

初音ミク Project mirai こんぷり～と
name: HATSUNE MIKU Project mirai COMPLETE
type: Performance

Never Change feat. Lyu:Lyu / SHUN [Limited Edition]
type: Composition

Toumei / CIVILIAN [Limited Edition]
type: Composition
creator: Hidekazu Koyama
name: 灯命 / CIVILIAN [初回生産限定盤]
composer: Hidekazu Koyama

Seikai Fuseikai / CIVILIAN [Limited Edition]
type: Release
created: 2020-08-19
title: 正解不正解 / CIVILIAN [期間生産限定盤]
creator: Hidekazu Koyama
type: MusicAlbum
date published: 2020-08-19
by artist: Hidekazu Koyama
catalogue number: SRCL-11491~2

MEKAKUCITY M's 2 ～メカクシティアクターズ・ヴォーカル&サウンド コレクション～
name: MEKAKUCITY M's 2: MEKAKUCITY ACTORS VOCAL & SOUND COLLECTION
date published: 2015-06-03
creator: Hidekazu Koyama
catalogue number: ZMCL-1025~6
type: Release
type: MusicAlbum
by artist: Hidekazu Koyama
created: 2015-06-03

Osamuraisan Selection vol.3 ~Utaite Hikite~
title: おさむらいさんせれくしょんvol.3～唄ひて弾きて～
type: Composition

Senya Souka / CIVILIAN [Limited Edition]
type: Composition
name: 千夜想歌 / CIVILIAN [期間生産限定盤]
composer: Hidekazu Koyama
creator: Hidekazu Koyama

魔王学院の不適合者 〜史上最強の魔王の始祖、転生して子孫たちの学校へ通う〜 キャラクターソング「Dear Descendants」& オリジナル・サウンドトラック Vol.6
title: The Misfit of Demon King Academy Character Song "Dear Descendants" & Original Soundtrack Vol.6 @en
title: Maou Gakuin no Futekigousha ~Shijou Saikyou no Maou no Shiso, Tensei Shite Shisontachi no Gakkou e Kayou~ Character Song "Dear Descendants" & Original Soundtrack Vol.6
type: Performance

day to YOU / 岬なこ [初回限定盤]
title: day to YOU / Nako Misaki [Limited Edition]
type: Performance

25時、ナイトコードで。 SEKAI ALBUM vol.1
type: Release
name: Nightcord at 25:00 SEKAI ALBUM vol.1 @en
tribute to: Hidekazu Koyama
title: 25-ji, Nightcord de. SEKAI ALBUM vol.1
created: 2022-04-06
date published: 2022-04-06
catalogue number: BRMM-10496
type: MusicAlbum

day to YOU / 岬なこ
title: day to YOU / Nako Misaki
type: Composition

Good Hello / Kano
name: グッドハロー / 鹿乃
type: Composition

rye / 鹿乃
title: rye / Kano [Limited Edition]
type: Composition

ばんび～の / 鹿乃
title: Bambino / Kano
type: Composition

Osamuraisan Selection vol.2 ~vocaloid medley~
name: おさむらいさん せれくしょん vol.2 ～vocaloid medley～
type: MusicAlbum
tribute to: Hidekazu Koyama
catalogue number: OSMR-00004
date published: 2011-06-12
type: Release
created: 2011-06-12

ばんび～の / 鹿乃
created: 2011-01-16
title: Bambino / Kano
type: MusicAlbum
type: Release
date published: 2011-01-16
catalogue number: SVCL-0004
tribute to: Hidekazu Koyama

MEKAKUCITY M's 2 ～メカクシティアクターズ・ヴォーカル&サウンド コレクション～
name: MEKAKUCITY M's 2: MEKAKUCITY ACTORS VOCAL & SOUND COLLECTION
type: Composition

HATSUNE MIKU PROJECT DIVA MEGA39'S 10TH ANNIVERSARY COLLECTION
name: 初音ミク Project DIVA MEGA39's CDコレクション
type: Performance

導 / CIVILIAN
title: Shirube / CIVILIAN
type: Performance

生者ノ行進 / CIVILIAN
name: Seija no Koushin / CIVILIAN [Anime Edition] [Limited Edition]
type: Performance

Shirube / CIVILIAN
composer: Hidekazu Koyama
creator: Hidekazu Koyama
name: 導 / CIVILIAN
type: Composition

Good Hello / Kano
creator: Hidekazu Koyama
catalogue number: BBCL-0006
created: 2014-12-30
type: Release
by artist: Hidekazu Koyama
name: グッドハロー / 鹿乃
type: MusicAlbum
date published: 2014-12-30

NARUTO THE BEST
type: MusicAlbum
created: 2016-07-06
date published: 2016-07-06
type: Release
catalogue number: SVWC-70175~6
by artist: Hidekazu Koyama
creator: Hidekazu Koyama

Never Change feat. Lyu:Lyu / SHUN
type: Performance

CIVILIAN
member: Hidekazu Koyama
type: MusicGroup
music group member: Hidekazu Koyama
type: Organization

ワンダー / そらる [初回限定盤A]
name: WONDER / soraru [Limited Edition A]
type: Performance

今この瞬間を / Little Glee Monster [初回生産限定盤]
type: Composition
title: Ima Kono Toki wo / Little Glee Monster [Limited Edition]

day to YOU / 岬なこ [初回限定盤]
name: day to YOU / Nako Misaki [Limited Edition]
type: Composition

Good Hello / Kano
type: Performance
name: グッドハロー / 鹿乃

Orbital Period / 星街すいせい
name: Orbital Period / Suisei Hoshimachi
type: Performance

clearly / 井口裕香 [初回生産限定盤]
name: clearly / Yuka Iguchi [Limited Edition]
type: Composition

Ima Kono Toki wo / Little Glee Monster
title: 今この瞬間を / Little Glee Monster
type: Composition

Osamuraisan Selection vol.3 ~Utaite Hikite~
type: MusicAlbum
date published: 2012-08-11
catalogue number: OSMR-00008
created: 2012-08-11
name: おさむらいさんせれくしょんvol.3～唄ひて弾きて～
tribute to: Hidekazu Koyama
type: Release

悪魔の弁護人 御子柴礼司 -贖罪の奏鳴曲- サウンド・トラック
name: Akuma no Bengonin: Mikoshiba Reiji -Shokuzai no Someikyoku- SOUND TRACK
type: Performance

V-box / Marasy
type: Composition
title: V-box / まらしぃ

Never Change feat. Lyu:Lyu / SHUN [Limited Edition]
type: Performance

rye / Kano [Limited Edition]
created: 2018-12-19
title: rye / 鹿乃
date published: 2018-12-19
catalogue number: TECI-1609
tribute to: Hidekazu Koyama
type: Release
type: MusicAlbum

HATSUNE MIKU 5th BIRTHDAY BEST ~impacts~
name: 初音ミク 5thバースデー ベスト ～impacts～
type: Composition

Suki na no. / Kano
title: すきなの。/ 鹿乃
type: Performance

WONDER / soraru [Limited Edition A]
created: 2019-07-17
name: ワンダー / そらる [初回限定盤A]
type: MusicAlbum
date published: 2019-07-17
creator: Hidekazu Koyama
type: Release
by artist: Hidekazu Koyama
catalogue number: TYCT-69151

Kano BEST
type: Composition
name: 鹿乃BEST

制服カノジョ OP主題歌＆EDキャラソンCD #『カワイイイソング』
title: #SEIFUKU KANOJO Opening Theme Song & Ending Character Song CD #『Kawaii Song』
type: Performance

今この瞬間を / Little Glee Monster
title: Ima Kono Toki wo / Little Glee Monster
type: Performance

Ima Kono Toki wo / Little Glee Monster [Limited Edition]
name: IMA KONO TOKIWO / Little Glee Monster [Limited Edition] @en
type: Composition
title: 今この瞬間を / Little Glee Monster [期間生産限定盤]

灯命 / CIVILIAN
name: Toumei / CIVILIAN
type: Performance

初音ミク Project DIVA MEGA39's CDコレクション
title: HATSUNE MIKU PROJECT DIVA MEGA39'S 10TH ANNIVERSARY COLLECTION
type: Composition

WONDER / soraru
catalogue number: TYCT-60142
type: Release
name: ワンダー / そらる
by artist: Hidekazu Koyama
created: 2019-07-17
creator: Hidekazu Koyama
type: MusicAlbum
date published: 2019-07-17

V-box / Marasy
name: V-box / まらしぃ
type: Performance

clearly / Yuka Iguchi
type: Performance
name: clearly / 井口裕香

生者ノ行進 / CIVILIAN
creator: Hidekazu Koyama
name: Seija no Koushin / CIVILIAN
composer: Hidekazu Koyama
type: Composition

初音ミク Project mirai こんぷり～と
title: HATSUNE MIKU Project mirai COMPLETE
type: Composition

何度でも / CIVILIAN
type: MusicAlbum
title: Nandodemo / CIVILIAN
type: Release
catalogue number: SRCL-9848
by artist: Hidekazu Koyama
created: 2018-08-08
creator: Hidekazu Koyama
date published: 2018-08-08

雨の雫 / 別所愛染 (CV:立石凛)
created: 2025-08-08
type: Release
name: Ame no Shizuku / Aise Bessho (CV: Rin Tateishi)
by artist: Hidekazu Koyama
creator: Hidekazu Koyama
type: MusicAlbum
date published: 2025-08-08
catalogue number: N/A

clearly / 井口裕香
date published: 2020-08-12
by artist: Hidekazu Koyama
type: Release
name: clearly / Yuka Iguchi
type: MusicAlbum
created: 2020-08-12
catalogue number: 1000769389
creator: Hidekazu Koyama

Still Still Stellar / 星街すいせい [完全生産限定盤]
name: Still Still Stellar / Suisei Hoshimachi [Limited Edition]
type: Performance

MEKAKUCITY M's COMPLETE BOX ~メカクシティアクターズ・ヴォーカル&サウンド コレクション~
catalogue number: ZMCL-1018~22
title: MEKAKUCITY M's COMPLETE BOX ~MEKAKUCITY ACTORS VOCAL & SOUND COLLECTION~
type: Release
title: MEKAKUCITY M's COMPLETE BOX @en
created: 2015-04-01
date published: 2015-04-01
type: MusicAlbum
by artist: Hidekazu Koyama
creator: Hidekazu Koyama

SPOTLIGHT vol.2
catalogue number: SNCL-59~60
type: Release
date published: 2022-01-26
tribute to: Hidekazu Koyama
type: MusicAlbum
created: 2022-01-26

Orbital Period / Suisei Hoshimachi
name: Orbital Period / 星街すいせい
type: Composition

Seikai Fuseikai / CIVILIAN
name: 正解不正解 / CIVILIAN
type: Performance

魔王学院の不適合者 〜史上最強の魔王の始祖、転生して子孫たちの学校へ通う〜 キャラクターソング「Dear Descendants」& オリジナル・サウンドトラック Vol.6
name: The Misfit of Demon King Academy Character Song "Dear Descendants" & Original Soundtrack Vol.6 @en
type: Release
type: MusicAlbum
title: Maou Gakuin no Futekigousha ~Shijou Saikyou no Maou no Shiso, Tensei Shite Shisontachi no Gakkou e Kayou~ Character Song "Dear Descendants" & Original Soundtrack Vol.6
by artist: Hidekazu Koyama
creator: Hidekazu Koyama
date published: 2021-02-24
catalogue number: ANZX-13152
created: 2021-02-24

Ima Kono Toki wo / Little Glee Monster [Limited Edition]
type: Performance
name: IMA KONO TOKIWO / Little Glee Monster [Limited Edition] @en
title: 今この瞬間を / Little Glee Monster [期間生産限定盤]

rye / 鹿乃
title: rye / Kano [Limited Edition]
type: Performance

赫色 -akairo- / CIVILIAN
date published: 2017-11-08
created: 2017-11-08
type: Release
title: akairo / CIVILIAN
by artist: Hidekazu Koyama
creator: Hidekazu Koyama
type: MusicAlbum
catalogue number: SRCL-9539

WONDER / soraru
name: ワンダー / そらる
type: Composition

Never Change feat. Lyu:Lyu / SHUN
type: Composition

コノハの世界事情 / じん ft. ナノウ
title: Konoha no Sekai Jijou / Jin ft. Nanou
type: Composition

灯命 / CIVILIAN
name: Toumei / CIVILIAN
composer: Hidekazu Koyama
type: Composition
creator: Hidekazu Koyama

Still Still Stellar / 星街すいせい [完全生産限定盤]
title: Still Still Stellar / Suisei Hoshimachi [Limited Edition]
date published: 2024-05-22
created: 2024-05-22
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
type: Release
type: MusicAlbum
catalogue number: HLP-20001~2

制服カノジョ OP主題歌＆EDキャラソンCD #『カワイイイソング』
catalogue number: EG-20240224
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
type: Release
type: MusicAlbum
title: #SEIFUKU KANOJO Opening Theme Song & Ending Character Song CD #『Kawaii Song』
created: 2024-02-22
date published: 2024-02-22

Still Still Stellar / 星街すいせい
name: Still Still Stellar / Suisei Hoshimachi
type: Performance

生者ノ行進 / CIVILIAN
title: Seija no Koushin / CIVILIAN [Anime Edition] [Limited Edition]
type: Composition
creator: Hidekazu Koyama
composer: Hidekazu Koyama

今この瞬間を / Little Glee Monster [期間生産限定盤]
creator: Hidekazu Koyama
type: Release
name: Ima Kono Toki wo / Little Glee Monster [Limited Edition]
by artist: Hidekazu Koyama
name: IMA KONO TOKIWO / Little Glee Monster [Limited Edition] @en
created: 2023-08-23
type: MusicAlbum
catalogue number: SRCL-12563~4
date published: 2023-08-23

千夜想歌 / CIVILIAN [期間生産限定盤]
type: MusicAlbum
name: Senya Souka / CIVILIAN [Limited Edition]
catalogue number: SRCL-11640~1
date published: 2021-03-10
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
created: 2021-03-10
type: Release

HATSUNE MIKU Project mirai COMPLETE
catalogue number: UMA-9056~62
type: MusicAlbum
creator: Hidekazu Koyama
type: Release
name: 初音ミク Project mirai こんぷり～と
created: 2015-09-02
by artist: Hidekazu Koyama
date published: 2015-09-02

すきなの。/ 鹿乃
type: Release
type: MusicAlbum
catalogue number: BBCL-0003
name: Suki na no. / Kano
date published: 2012-12-31
created: 2012-12-31
tribute to: Hidekazu Koyama

雨の雫 / 別所愛染 (CV:立石凛)
name: Ame no Shizuku / Aise Bessho (CV: Rin Tateishi)
type: Performance

Kano BEST
type: Performance
title: 鹿乃BEST

SPOTLIGHT vol.2
type: Performance

25-ji, Nightcord de. SEKAI ALBUM vol.1
title: Nightcord at 25:00 SEKAI ALBUM vol.1 @en
title: 25時、ナイトコードで。 SEKAI ALBUM vol.1
type: Performance

灯命 / CIVILIAN [初回生産限定盤]
catalogue number: SRCL-11803~4
name: Toumei / CIVILIAN [Limited Edition]
type: MusicAlbum
type: Release
creator: Hidekazu Koyama
date published: 2021-06-02
by artist: Hidekazu Koyama
created: 2021-06-02

Seikai Fuseikai / CIVILIAN
composer: Hidekazu Koyama
type: Composition
creator: Hidekazu Koyama
name: 正解不正解 / CIVILIAN

Bambino / Kano
type: Performance
title: ばんび～の / 鹿乃

まつりごと / 稲取ひなめ (CV: 鈴木杏奈)
name: Matsurigoto / Hiname Inatori (CV: Anna Suzuki)
type: Composition

赫色 -akairo- / CIVILIAN
name: akairo / CIVILIAN [Limited Edition]
type: MusicAlbum
type: Release
created: 2017-11-08
catalogue number: SRCL-9540~1
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
date published: 2017-11-08

生者ノ行進 / CIVILIAN
title: Seija no Koushin / CIVILIAN
type: Performance

SPOTLIGHT vol.2
type: Composition

Suki na no. / Kano
title: すきなの。/ 鹿乃
type: Composition

rye / 鹿乃
created: 2018-12-19
catalogue number: TECI-1611
title: rye / Kano
type: Release
tribute to: Hidekazu Koyama
date published: 2018-12-19
type: MusicAlbum

clearly / Yuka Iguchi
type: Composition
title: clearly / 井口裕香

Still Still Stellar / Suisei Hoshimachi
type: Release
by artist: Hidekazu Koyama
date published: 2021-09-29
creator: Hidekazu Koyama
title: Still Still Stellar / 星街すいせい
type: MusicAlbum
created: 2021-09-29
catalogue number: HOLO-002

まつりごと / 稲取ひなめ (CV: 鈴木杏奈)
name: Matsurigoto / Hiname Inatori (CV: Anna Suzuki)
catalogue number: N/A
type: MusicAlbum
type: Release
creator: Hidekazu Koyama
created: 2025-08-01
by artist: Hidekazu Koyama
date published: 2025-08-01

Still Still Stellar / Suisei Hoshimachi
type: Composition
title: Still Still Stellar / 星街すいせい

赫色 -akairo- / CIVILIAN
title: akairo / CIVILIAN
type: Performance

おさむらいさん せれくしょん vol.2 ～vocaloid medley～
title: Osamuraisan Selection vol.2 ~vocaloid medley~
type: Composition

千夜想歌 / CIVILIAN
name: Senya Souka / CIVILIAN
type: Performance

rye / Kano
name: rye / 鹿乃
type: Performance

生者ノ行進 / CIVILIAN
type: Release
type: MusicAlbum
by artist: Hidekazu Koyama
title: Seija no Koushin / CIVILIAN [Anime Edition] [Limited Edition]
creator: Hidekazu Koyama
created: 2017-03-01
catalogue number: SRCL-9357
date published: 2017-03-01

WONDER / soraru [Limited Edition A]
type: Composition
name: ワンダー / そらる [初回限定盤A]

Senya Souka / CIVILIAN [Limited Edition]
name: 千夜想歌 / CIVILIAN [期間生産限定盤]
type: Performance

Hidekazu Koyama
made: Never Change feat. Lyu:Lyu / SHUN
album: 赫色 -akairo- / CIVILIAN
made: Still Still Stellar / Suisei Hoshimachi
album: 何度でも / CIVILIAN
made: lyrics
made: Orbital Period / Suisei Hoshimachi
made: 生者ノ行進 / CIVILIAN
album: 生者ノ行進 / CIVILIAN
type: Person
made: 制服カノジョ OP主題歌＆EDキャラソンCD #『カワイイイソング』
made: Seikai Fuseikai / CIVILIAN [Limited Edition]
made: 千夜想歌 / CIVILIAN
album: Good Hello / Kano
made: 導 / CIVILIAN
made: 灯命 / CIVILIAN
made: MEKAKUCITY M's COMPLETE BOX ~メカクシティアクターズ・ヴォーカル&サウンド コレクション~
made: Still Still Stellar / 星街すいせい [完全生産限定盤]
album: 制服カノジョ OP主題歌＆EDキャラソンCD #『カワイイイソング』
made: 灯命 / CIVILIAN [初回生産限定盤]
album: Orbital Period / Suisei Hoshimachi
made: Senya Souka / CIVILIAN [Limited Edition]
made: Toumei / CIVILIAN [Limited Edition]
made: 悪魔の弁護人 御子柴礼司 -贖罪の奏鳴曲- サウンド・トラック
album: Still Still Stellar / 星街すいせい [完全生産限定盤]
made: まつりごと / 稲取ひなめ (CV: 鈴木杏奈)
album: HATSUNE MIKU Project mirai COMPLETE
made: clearly / 井口裕香
made: Good Hello / Kano
album: 灯命 / CIVILIAN
album: clearly / Yuka Iguchi [Limited Edition]
album: clearly / 井口裕香
album: Seikai Fuseikai / CIVILIAN [Limited Edition]
made: 何度でも / CIVILIAN
album: 悪魔の弁護人 御子柴礼司 -贖罪の奏鳴曲- サウンド・トラック
made: clearly / Yuka Iguchi [Limited Edition]
album: Never Change feat. Lyu:Lyu / SHUN
made: WONDER / soraru
album: まつりごと / 稲取ひなめ (CV: 鈴木杏奈)
album: Konoha no Sekai Jijou / Jin ft. Nanou
made: MEKAKUCITY M's 2 ～メカクシティアクターズ・ヴォーカル&サウンド コレクション～
album: 今この瞬間を / Little Glee Monster
made: WONDER / soraru [Limited Edition B]
album: 千夜想歌 / CIVILIAN [期間生産限定盤]
made: 赫色 -akairo- / CIVILIAN
album: day to YOU / 岬なこ
album: MEKAKUCITY M's 2 ～メカクシティアクターズ・ヴォーカル&サウンド コレクション～
made: NARUTO THE BEST
account: OnlineChatAccount
  account name: koyama_nanou
  account service homepage: http://www.twitter.com/
album: Never Change feat. Lyu:Lyu / SHUN [Limited Edition]
album: MEKAKUCITY M's COMPLETE BOX ~メカクシティアクターズ・ヴォーカル&サウンド コレクション~
album: day to YOU / 岬なこ [初回限定盤]
album: WONDER / soraru [Limited Edition A]
album: WONDER / soraru
made: Maou Gakuin no Futekigousha ~Shijou Saikyou no Maou no Shiso, Tensei Shite Shisontachi no Gakkou e Kayou~ Character Song "Dear Descendants" & Original Soundtrack Vol.6
made: day to YOU / 岬なこ
made: HATSUNE MIKU 5th BIRTHDAY BEST ~impacts~
album: 灯命 / CIVILIAN [初回生産限定盤]
album: Ima Kono Toki wo / Little Glee Monster [Limited Edition]
album: Seikai Fuseikai / CIVILIAN
made: 千夜想歌 / CIVILIAN [期間生産限定盤]
made: 今この瞬間を / Little Glee Monster
album: 雨の雫 / 別所愛染 (CV:立石凛)
made: Seikai Fuseikai / CIVILIAN
made: Never Change feat. Lyu:Lyu / SHUN [Limited Edition]
made: Shirube / CIVILIAN
member of: CIVILIAN
album: HATSUNE MIKU 5th BIRTHDAY BEST ~impacts~
made: Ima Kono Toki wo / Little Glee Monster [Limited Edition]
album: WONDER / soraru [Limited Edition B]
album: Still Still Stellar / Suisei Hoshimachi
made: Konoha no Sekai Jijou / Jin ft. Nanou
album: 千夜想歌 / CIVILIAN
type: MusicGroup
album: 初音ミク Project DIVA MEGA39's CDコレクション
album: 導 / CIVILIAN
made: 今この瞬間を / Little Glee Monster [期間生産限定盤]
made: WONDER / soraru [Limited Edition A]
made: 魔王学院の不適合者 〜史上最強の魔王の始祖、転生して子孫たちの学校へ通う〜 キャラクターソング「Dear Descendants」& オリジナル・サウンドトラック Vol.6
made: HATSUNE MIKU Project mirai COMPLETE
album: NARUTO THE BEST

導 / CIVILIAN
name: Shirube / CIVILIAN
type: Release
type: MusicAlbum
catalogue number: SRXX-03925
creator: Hidekazu Koyama
by artist: Hidekazu Koyama
created: 2021-04-25
date published: 2021-04-25

制服カノジョ OP主題歌＆EDキャラソンCD #『カワイイイソング』
name: #SEIFUKU KANOJO Opening Theme Song & Ending Character Song CD #『Kawaii Song』
type: Composition