ALBUMS
Beatrice Dillon / Hideki Umezawa
Basho / Still Forms
2025, LP, Album, Ltd, Portraits GRM, 
,
, Experimental/Electroacoustic
ユウサク アライ* + ヒデキ ウメザワ*
Echoes From Clouds = エコーズ フロム クラウズ
2022
Mads Emil Nielsen + Various , Andrea Neumann, Jan Jelinek, Hideki Umezawa
Framework 2
2020, 2x10", EP, arbitrary
Hideki Umezawa + Shohei Amimori
Critical Garden
2020, CD, Album, Ftarri
Hideki Umezawa, Andrew Pekler
Two Views Of Amami Ōshima
2020
Hideki Umezawa + Yoichi Kamimura
re/ports
2019, File, MP3, VBR, Ftarri
Hideki Umezawa, Yoko Ikeda / Wakana Ikeda, Yoichi Kamimura, Takashi Masubuchi
Ftarri After Tomorrow
2017, CD, Comp, Meenna
Hideki Umezawa
Suidô-Kan
2012, CD, Album, Ltd, and/OAR
Marihiko Hara, Hideki Umezawa
Jigokuhen
2012, CDr, Mini, Wist Rec
Pawn
Glimmer Of Sunlight
2012, CD, 
,
, Abstract/Experimental/Ambient
Pawn
Tone Sketch
2011, CD, 
,
, J-pop/Vocal/Glitch/IDM/Minimal/Experimental
Pawn
Above The Winter Oaks
2010, CDr, Album, Ltd, The Land of
APPEARANCES +
Hideki Umezawa
Music For Installation Works = ミュージックフォーインスタレーションワークス
2022, 6xFile, FLAC, Comp, hōlm
lycoriscoris
Until Then Remix
2014, 4xFile, FLAC, EP, Moph Record
Nozomu Matsumoto
Phonocentrism
2019
Josh Varnedore
Sun Chapter
2012, CD, Album, Dynamophone Records
Pawn
Islet Ep
2011, CDr, Mini, EP, Ltd, Drifting Falling
Pawn
A Hum Of The Library
2010, CDr, EP, Ltd, Cotton Goods
Pawn
Glass + Breath
2009, CDr, Album, Ltd + Box, Dynamophone Records
Various
Tribute To Ryuichi Sakamoto "Micro Ambient Music" Vol. 3
2024, LP, Comp, Ltd, Commmons
Various
Micro Ambient Music (Tribute To Ryuichi Sakamoto)
2023
Various
Banc D’essai 2011-2019
2021, 2xCD, INA-GRM
Various
Prix Russolo 2016-2017
2018, 2xCD, Comp, Studio Forum, 
,
, Experimental/Musique Concrète
Various
The 1932 Wheat Decoherence
2017, CDr, Ltd, Mixed, Mixtape, Promo, Bla, Wist Rec
Various
Prix Presque Rien Prize
2017, 3xCD, Ltd, Association Presque Rien, ,
, Musique Concrète/Experimental/Sound Art
Unlogic Thing
Seizame
2016, File, MP3, Mixed, 320, Unline, ,
, Abstract/Ambient/Drone/Experimental/Field Recording/Sound Collage
Various
The 1901 Rabbit Cull
2016, CDr, Ltd, Mixed, Mixtape, Promo, Bla, Wist Rec
CoH
A Colourful Storm 056
2015, File, MP3, Mixed, 320, A Colourful Storm, 
,
, Minimal/Experimental/Modern Classical/Ambient
Various
Elements I-V
2014, 5x CD, Box Set, ,
, Ambient/Experimental/Folk Rock/Modern Classical
Various
The Silence Was Warm Vol.4
2013, CD, Comp, Ltd, Symbolic Interaction, ,
, Downtempo/Modern Classical/Abstract/Minimal/IDM/Ambient
Various
V-P V-F Is V-N Double [Field] Compilation Series, 203
2012, 2xCDr, Album, Winds Measure Recordings
Few Quiet People
Scary Playgrounds
2012, 14xFile, AAC, MP3, Comp, Few Quiet People
Various
Aftertape
2011, Cass, Comp, Ltd, Duenn