{{Circle
| arrangement =Y
| name        =DDBY
| logo        =DDBY circle banner.jpg

| intro       =

| dates       =2008 - present
| url         =http://ddby.jp/
| genre       ={{Genre|Instrumental}}, {{Genre|Chiptune}}, {{Genre|Jazz}}
| members     =:Bizen &mdash; arrangement

| description =

| discography =

{{DiscographyItem|{{lang|ja|東方幻想曲}}|Touhou Gensokyoku.jpg|2008-12-29|Comiket 75|An album featuring instrumental arrangements of themes from ''[[Perfect Cherry Blossom]]''.|link=東方幻想曲}}

{{DiscographyItem|{{lang|ja|紅マジック}}|Kurenai Magic cover.jpg|2009-08-15|Comiket 76|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]''.|link=紅マジック}}

{{DiscographyItem|{{lang|ja|とうほうふゆまつり}}|Fuyu Matsuri cover.jpg|2009-12-30|Comiket 77|An album featuring vocal and instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]'', ''[[Perfect Cherry Blossom]]'', ''[[Imperishable Night]]'', ''[[Shoot the Bullet]]'' and ''[[Undefined Fantastic Object]]''.|link=とうほうふゆまつり}}

{{DiscographyItem|Taz|Taz Cover.jpg|2010-03-14|Reitaisai 7|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]''.}}

{{DiscographyItem|M3-2010春 特典CD|No image.jpg|2010-05-05|M3-25|An album featuring instrumental arrangements of themes from ''[[Subterranean Animism]]''.}}

{{DiscographyItem|Touhou UnderGround|Touhou UnderGround cover.jpg|2010-05-05|M3-25|An album featuring instrumental arrangements of themes from ''[[Subterranean Animism]]''.}}

{{DiscographyItem|InsTouhou|InsTouhou.jpg|2010-08-14|Comiket 78|An album featuring instrumental arrangements of themes from ''[[Imperishable Night]]''. }}

{{DiscographyItem|Relax Piano|Relax Piano.jpg|2011-12-30|Comiket 81|An album featuring instrumental arrangements of themes from ''[[Magical Astronomy]]''.}}

{{DiscographyItem|Kirisame Drive|Kirisame Drive.jpg|2012-05-27|Reitaisai 9|An album featuring instrumental arrangements of themes from ''[[Mountain of Faith]]''.}}

{{DiscographyItem|{{lang|ja|座って聴く東方文花帳}}|Suwatte Kiku Touhou Bunkachou.jpg|2012-08-11|Comiket 82|An album featuring instrumental arrangements of themes from ''[[Shoot the Bullet]]'' and ''[[Double Spoiler]]''.|link=座って聴く東方文花帳}}

{{DiscographyItem|{{lang|ja|二人の演奏会 -鳥船遺跡からの帰り道-}}|Futari no Ensoukai -Torifune Iseki kara no Kaerimichi-.jpg|2012-12-30|Comiket 83|An album featuring instrumental arrangements of themes from ''[[Trojan Green Asteroid]]''.|link=二人の演奏会 -鳥船遺跡からの帰り道-}}

{{DiscographyItem|{{lang|ja|秘封旅行記}}|hihuu_ryokou_jacket.png|2014-05-11|Reitaisai 11|An album featuring instrumental arrangements of themes from ''[[Immaterial and Missing Power]]'', ''[[Changeability of Strange Dream]]'', ''[[Embodiment of Scarlet Devil]]'' and ''[[Shuusou Gyoku]]''.|link=秘封旅行記}}

{{DiscographyItem|{{lang|ja|おしゃれとは、こういうこと。}}|osyare_toha_jacket.png|2015-05-10|Reitaisai 12|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]''.|link=おしゃれとは、こういうこと。}}

{{DiscographyItem|和カフェ東方|和カフェ東方.jpg|2018-12-30|Comiket 95|An album featuring instrumental arrangements of themes from ''[[Subterranean Animism]]''.}}

{{DiscographyItem|眠りのピアノ 花|眠りのピアノ_花.jpg|2020-03-22|Air Reitaisai 17|An album featuring instrumental arrangements of themes from ''[[Changeability of Strange Dream]]'' and ''[[Dateless Bar "Old Adam"]]''.}}

| additional_sections =
==8BiTouhou==

<table border="0">

{{DiscographyItem|8BiTouhou|8BiTouhou cover.jpg|2008-10-13|M3-22|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]'', ''[[Perfect Cherry Blossom]]'', ''[[Imperishable Night]]'', ''[[Shoot the Bullet]]'', ''[[Mountain of Faith]]'' and ''[[Subterranean Animism]]''.}}

{{DiscographyItem|8BiTouhou 2|8BiTouhou2 cover.jpg|2008-11-02|Touhou Kouroumu 4|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]'', ''[[Perfect Cherry Blossom]]'', ''[[Imperishable Night]]'', ''[[Mountain of Faith]]'' and ''[[Subterranean Animism]]''.}}

{{DiscographyItem|8BiTouhou 3|8BiTouhou3 cover.jpg|2009-03-08|Reitaisai 6|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]'', ''[[Perfect Cherry Blossom]]'', ''[[Imperishable Night]]'' and ''[[Subterranean Animism]]''.}}

</table>

==Touhou Synthesis==

<table border="0">

{{DiscographyItem|Touhou Synthesis|Touhou Synthesis cover.jpg|2009-03-08|Reitaisai 6|An album featuring instrumental arrangements of themes from ''[[Mountain of Faith]]''.}}

{{DiscographyItem|Touhou Synthesis 2|Touhou Synthesis2 cover.jpg|2009-05-05|M3-23|An album featuring instrumental arrangements of themes from ''[[Subterranean Animism]]''.}}

{{DiscographyItem|Touhou Synthesis 3|Touhou Synthesis3 cover.jpg|2009-08-15|Comiket 76|An album featuring instrumental arrangements of themes from ''[[Imperishable Night]]''.}}

{{DiscographyItem|Touhou Synthesis 4|Touhou Synthesis4 cover.jpg|2009-10-06|Comic Treasure 14|An album featuring instrumental arrangements of themes from ''[[Phantasmagoria of Flower View]]''.}}

{{DiscographyItem|Touhou Synthesis 5|Touhou Synthesis5 Cover.jpg|2009-12-30|Comiket 77|An album featuring instrumental arrangements of themes from ''[[Perfect Cherry Blossom]]''.}}

</table>

==Highway==

<table border="0">

{{DiscographyItem|Highway|Highway Cover.jpg|2009-10-11|Touhou Kouroumu 5|An album featuring instrumental arrangements of themes from ''[[Shoot the Bullet]]''.}}

{{DiscographyItem|Highway 2|Highway 2 cover.jpg|2010-06-20|Tora Matsuri 2010|An album featuring instrumental arrangements of themes from ''[[Double Spoiler]]''.}}

</table>

==Touhou Synth==

<table border="0">

{{DiscographyItem|{{lang|ja|シンセ デ トウホウ イ}}|synth_i_jacket.png|2015-05-10|Reitaisai 12|An album featuring instrumental arrangements of themes from ''[[Undefined Fantastic Object]]''.|link=シンセ デ トウホウ イ}}

{{DiscographyItem|{{lang|ja|シンセ デ トウホウ ロ}}|synth_ro_jacket.png|2015-08-14|Comiket 88|An album featuring instrumental arrangements of themes from ''[[Double Spoiler]]'' and ''[[Shoot the Bullet]]''.|link=シンセ デ トウホウ ロ}}

</table>

==できる大人の出勤==

<table border="0">

{{DiscographyItem|{{lang|ja|できる大人の出勤}}CD|dekiru_01_jacket.png|2015-11-01|Touhou Kouroumu 11|An album featuring instrumental arrangements of themes from ''[[Double Spoiler]]'' and ''[[Shoot the Bullet]]''.|link=できる大人の出勤CD}}

{{DiscographyItem|{{lang|ja|できる大人の出勤}}CD 2|dekiru_02_jacket.png|2015-12-30|Comiket 89|An album featuring instrumental arrangements of themes from ''[[Imperishable Night]]''.|link=できる大人の出勤CD 2}}

</table>

==Cafe de Touhou==

<table border="0">

{{DiscographyItem|Cafe de Touhou|Cafe de touhou.jpg|2010-12-30|Comiket 79|An album featuring instrumental arrangements of themes from ''[[Perfect Cherry Blossom]]''.}}

{{DiscographyItem|Cafe de Touhou 2|Cafe de Touhou 2.jpg|2011-08-13|Comiket 80|An album featuring instrumental arrangements of themes from ''[[Undefined Fantastic Object]]''.}}

{{DiscographyItem|Cafe de Touhou 3|Cafe de Touhou 3.jpg|2011-12-30|Comiket 81|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]''.}}

{{DiscographyItem|Cafe de Touhou 4|Cafe de Touhou 4.jpg|2013-05-26|Reitaisai 10|An album featuring instrumental arrangements of themes from ''[[Imperishable Night]]''.}}

{{DiscographyItem|Cafe de Touhou 5|cafe_5_jacket.png|2013-12-30|Comiket 85|An album featuring instrumental arrangements of themes from ''[[Double Spoiler]]'', ''[[Shoot the Bullet]]'' and ''[[Mountain of Faith]]''.|link=Cafe de Touhou 5}}

{{DiscographyItem|Cafe de Touhou 6|cafe_6_jacket.png|2014-12-29|Comiket 87|An album featuring instrumental arrangements of themes from ''[[Subterranean Animism]]''.|link=Cafe de Touhou 6}}

{{DiscographyItem|Cafe de Touhou 7|cafe_07_jacket.png|2015-08-14|Comiket 88|An album featuring instrumental arrangements of themes from ''[[Mountain of Faith]]''.|link=Cafe de Touhou 7}}

{{DiscographyItem|Cafe de Touhou 8|cafe8_jacket.jpg|2017-10-22|Touhou Kouroumu 13|An album featuring instrumental arrangements of themes from ''[[Ten Desires]]''.|link=Cafe de Touhou 8}}

</table>

==Gensokyo Drive==

<table border="0">

{{DiscographyItem|{{lang|ja|幻想郷ドライブ}}|g_drive_jacket.jpg|2017-10-22|Touhou Kouroumu 13|An album featuring instrumental arrangements of themes from ''[[Undefined Fantastic Object]]''.|link=幻想郷ドライブ}}

{{DiscographyItem|{{lang|ja|幻想郷ドライブ}}2|GD2_jacket.jpg|2017-12-29|Comiket 93|An album featuring instrumental arrangements of themes from ''[[Double Dealing Character]]''.|link=幻想郷ドライブ2}}

{{DiscographyItem|{{lang|ja|幻想郷ドライブ}}3|gensoukyoudrive3_1000.png|2018-02-04|Touhou Spiral Tea Party 4|An album featuring instrumental arrangements of themes from ''[[Double Dealing Character]]''.|link=幻想郷ドライブ3}}

{{DiscographyItem|{{lang|ja|幻想郷ドライブ}}4|g4_jacket.jpg|2018-03-04|Daikyuushuu Touhousai 29|An album featuring instrumental arrangements of themes from ''[[Subterranean Animism]]''.|link=幻想郷ドライブ4}}

</table>

==Battle Arrangement Composition==

<table border="0">

{{DiscographyItem|{{lang|ja|全曲バトルアレンジ}}|zenkyoku_1000.jpg|2018-05-06|Reitaisai 15|An album featuring instrumental arrangements of themes from ''[[Highly Responsive to Prayers]]''.|link=全曲バトルアレンジ}}

{{DiscographyItem|{{lang|ja|全曲バトルアレンジ}}2|zenkyoku_2_1000.jpg|2018-06-02|APOLLO-08|An album featuring instrumental arrangements of themes from ''[[Shoot the Bullet]]'' and ''[[Double Spoiler]]''.|link=全曲バトルアレンジ2}}

{{DiscographyItem|全曲バトルアレンジ3|Zenkyoku_3_1000.jpg|2018-08-10|Comiket 94|An album featuring instrumental arrangements of themes from ''[[Perfect Cherry Blossom]]''.}}

</table>

==Bartender Reimu==

<table border="0">

{{DiscographyItem|{{lang|ja|バーテンダーレイム}}|bartendar_reimu.png|2017-05-07|Reitaisai 14|An album featuring instrumental arrangements of themes from ''[[Perfect Cherry Blossom]]''.|link=バーテンダーレイム}}

{{DiscographyItem|{{lang|ja|バーテンダーレイム}}2|jacket_reimu2.png|2017-08-11|Comiket 92|An album featuring instrumental arrangements of themes from ''[[Embodiment of Scarlet Devil]]''.|link=バーテンダーレイム2}}

{{DiscographyItem|{{lang|ja|バーテンダーレイム}}3|bartender3_jacket.jpg|2017-12-29|Comiket 93|An album featuring instrumental arrangements of themes from ''[[Double Dealing Character]]''.|link=バーテンダーレイム3}}

{{DiscographyItem|{{lang|ja|バーテンダーレイム}}4|bar_4_1000.jpg|2018-05-06|Reitaisai 15|An album featuring instrumental arrangements of themes from ''[[Highly Responsive to Prayers]]''.|link=バーテンダーレイム4}}

{{DiscographyItem|バーテンダーレイム5|Bartender5_jacket.jpg|2018-08-10|Comiket 94|An album featuring instrumental arrangements of themes from ''[[Imperishable Night]]''.}}

{{DiscographyItem|バーテンダーレイム6|Bartender6_jacket.jpg|2018-10-21|Touhou Kouroumu 14|An album featuring instrumental arrangements of themes from ''[[Mountain of Faith]]''.}}

{{DiscographyItem|バーテンダーレイム7|Bartender7_jacket.jpg|2018-12-30|Comiket 95|An album featuring instrumental arrangements of themes from ''[[Mountain of Faith]]''.}}

</table>

==Evening Cafe==

<table border="0">

{{DiscographyItem|夜カフェ|夜カフェ.jpg|2019-05-05|Reitaisai 16|An album featuring instrumental arrangements of themes from ''[[Undefined Fantastic Object]]''.}}

{{DiscographyItem|夜カフェ2|夜カフェ２.jpg|2019-08-12|Comiket 96|An album featuring instrumental arrangements of themes from ''[[Imperishable Night]]''.}}

{{DiscographyItem|夜カフェ3|夜カフェ３.jpg|2019-12-31|Comiket 97|An album featuring instrumental arrangements of themes from ''[[Perfect Cherry Blossom]]''.}}

</table>

==Relax Cafe==

<table border="0">

{{DiscographyItem|Relax Cafe for Work - ＃1.Kishinjou -|Relax_Cafe_for_Work_1.jpg|2020-05-05|Comiket 98|An album featuring instrumental arrangements of themes from ''[[Double Dealing Character]]''.}}

{{DiscographyItem|Relax Cafe for Work - ＃2.Bunkachou & DS -|Relax_Cafe_for_Work_2.jpg|2020-12-25|Air Comiket 2|An album featuring instrumental arrangements of themes from ''[[Phantasmagoria of Flower View]]'', ''[[Shoot the Bullet]]'' and ''[[Double Spoiler]]''.}}

{{DiscographyItem|Relax Cafe for Work - ＃3.Shinreibyou -|Relax_Cafe_for_Work_3.jpg|2020-12-25|Air Comiket 2|An album featuring instrumental arrangements of themes from ''[[Ten Desires]]''.}}

</table>

==Secret Seals Story==

<table border="0">

{{DiscographyItem|{{lang|ja|秘封物語}}|Hifuu Monogatari.jpg|2010-08-14|Comiket 78|An album featuring instrumental arrangements of themes from ''[[Dolls in Pseudo Paradise]]'', ''[[Ghostly Field Club]]'', ''[[Retrospective 53 minutes]]'' and ''[[Magical Astronomy]].|link=秘封物語}}

{{DiscographyItem|{{lang|ja|秘封物語}}2|Hifuu Mono 2 cover.jpg|2010-10-11|Touhou Kouroumu 6|An album featuring instrumental arrangements of themes from ''[[Ghostly Field Club]]'', ''[[Changeability of Strange Dream]]'', ''[[Retrospective 53 minutes]]'' and ''[[Magical Astronomy]]''.|link=秘封物語2}}

</table>

==Soothing Wind==

<table border="0">

{{DiscographyItem|{{lang|ja|～癒しの風～}} vol.1 {{lang|ja|大空魔術}}|~Iyashi no Kaze~ Vol.1 Oozora Majutsu.png|2013-05-26|Reitaisai 10|An album featuring vocal and instrumental arrangements of themes from ''[[Magical Astronomy]]''.|link=～癒しの風～ vol.1 大空魔術}}

{{DiscographyItem|{{lang|ja|癒しの風}} vol.2 {{lang|ja|蓮台野夜行 ～}} Ghostly Field Club|Iyashi no Kaze vol.2.jpg|2013-08-12|Comiket 84|An album featuring vocal and instrumental arrangements of themes from ''[[Ghostly Field Club]]''.|link=癒しの風 vol.2 蓮台野夜行 ～ Ghostly Field Club}}

{{DiscographyItem|{{lang|ja|癒しの風}} vol.3 {{lang|ja|卯酉東海道 ～}} Retrospective 53 minutes|iyashi_3_jacket.png|2013-10-13|Touhou Kouroumu 4|An album featuring vocal and instrumental arrangements of themes from ''[[Retrospective 53 minutes]]'', ''[[Imperishable Night]]'', ''[[Phantasmagoria of Flower View]]'', ''[[Shoot the Bullet]]'' and ''[[Embodiment of Scarlet Devil]]''.|link=癒しの風 vol.3 卯酉東海道 ～ Retrospective 53 minutes}}

</table>

==Wilderness Traveler==

<table border="0">

{{DiscographyItem|{{lang|ja|荒野の旅人 大空魔術 ～}} Magical Astronomy|kouya1_jacket.png|2016-08-13|Comiket 90|An album featuring instrumental arrangements of themes from ''[[Magical Astronomy]]'' and ''[[Shoot the Bullet]]''.|link=荒野の旅人 大空魔術 ～ Magical Astronomy}}

{{DiscographyItem|{{lang|ja|荒野の旅人}} 2 {{lang|ja|鳥船遺跡 ～}} Trojan Green Asteroid|kouya2_jacket.png|2016-12-29|Comiket 91|An album featuring instrumental arrangements of themes from ''[[Ten Desires]]'', ''[[Subterranean Animism]]'', ''[[Trojan Green Asteroid]]'' and ''[[Undefined Fantastic Object]]''.|link=荒野の旅人2 鳥船遺跡 ～ Trojan Green Asteroid}}

{{DiscographyItem|荒野の旅人3 莲台野夜行 ～ Ghostly Field Club|Kouya3_jacket.jpg|2018-05-06|Reitaisai 15|An album featuring instrumental arrangements of themes from ''[[Ghostly Field Club]]''.}}

</table>

}}