Now defunct Swiss experimental duo. They began in 1972 as free jazz performers and over the life of the duo moved towards electroacoustic and experimental composition. Disbanded between 2003 and 2004.
ALBUMS
Voice Crack
Revision
2005, 12", S/Sided, Ltd, Mego, 
,
, Experimental
Samartzis* _ Müller* _ Voice Crack
Wireless_Within
2005, CD, Album, For 4 Ears, 
,
, Abstract/Experimental
Carlos Zíngaro / Voice Crack
Ba Kagpja
2003, CD, Album, Sirr
Oren Ambarchi Gunter Muller* Voice Crack
Oystered
2003, 
,
, Glitch/Abstract/Experimental/Free Improvisation
Voice Crack _ Müller*
Buda_Rom
2002, CD, For 4 Ears
Voice Crack
Remixes
2002, CD, Album, Comp, Ambush, 
,
, Abstract/Drum n Bass/Experimental
Marchetti* _ Voice Crack _ Noetinger*
Double_Wash
2001, CD, Album, GROB, ,
, Noise/Experimental/Free Improvisation
Voice Crack
Shock_Late
2000, LP, Album, Entenpfuhl
Otomo Yoshihide / Voice Crack
Bits, Bots And Signs
2000, CD, Album, Erstwhile Records, 
,
, Abstract/Noise/Electro/Experimental
Voice Crack
Ballchannel
2000, 7", Single, Tra, Meeuw Muzak
Gmueller* _ Voicecrack* _ erikm
Poire_Z
1999, CD, Album, For 4 Ears, 
,
, Experimental/Free Improvisation
Voice Crack
Infra_Red
1999, CD, Album, Uhlang Produktion
Voice Crack
Below Beyond Above
1998, CD, Album, Uhlang Produktion
Voice Crack
Live In Madrid
1998, CD, Not On Label
Voice Crack
Live In Madrid
1998, CDr, Ltd, Modisti
Müller*, Voice Crack, O'Rourke*
Table Chair And Hatstand
1997, CD, Album, For 4 Ears
Borbetomagus & Voice Crack
Concerto For Cracked Everyday Electronics And Chamber Orchestra
1997, CD, Album, Agaric Records, Uhlang Produktion, V-Records, ,
, Noise/Free Improvisation
Voice Crack
Kick That Habit
1993
Borbetomagus & Voice Crack
Asbestos Shake
1991, CD, Album, Agaric Records, Uhlang Produktion, V-Records
Voicecrack*
Psychic Rally Tschinngl Für Voicecrack Radio-concert
1991, Cass, S/Sided, Psychic Rally
Voice Crack
Earflash
1990
Borbetomagus & Voice Crack
Fish That Sparkling Bubble
1988
APPEARANCES +
Voice Crack
Live At The 13th Note Glasgow 20/11/1999
2020, File, FLAC, scatterArchive
Voice Crack
Linzer Schnitte
2002, File, MP3, Single, 192, Tu M'p3
Voice Crack
Taken And Changed
1999, 7xFile, MP3, 128, Falsch
Skylla : Silvia Fässler & Billy Roisz
Skylla
2008, CD, Album, Ltd, Editions Mego, ,
, Abstract/Noise/Experimental
Psychic Rally
12/October/1989
1989, Cass, Mixed, C60, Psychic Rally, ,
, Noise/Experimental
Hrvatski
Remixplosion (1996-2006)
2020, 41xFile, WAV, Comp, 24 , Not On Label (Keith Fullerton Whitman Self-released), ,
, Breakbeat/Abstract/Drum n Bass/Ambient
Unlogic Thing
451 (Unline Special)
2015, File, MP3, Mixed, 320, Unline, 
,
, Experimental/Dark Ambient/Abstract/Musique Concrète/Noise
Rene Hell
RA.397
2014, File, MP3, Mixed, 320, Resident Advisor, ,
, Modern Classical/Experimental/Ambient/Musique Concrète
S.Y.D*
Hi Wendy
2012, File, MP3, Mixed, Bruits De Fond, 
,
, Ambient/Industrial/Noise
Plastic Crimewave
Galactic Zoo Dossier Tape Club Vol. III #3: Advance Yourself! Atomic Sounds
2008, Cass, Mixtape, Not On Label (Plastic Crimewave Self-Released),
Various
The End Of The Fear Of God
2004, CD, Comp, Tochnit Aleph, ,
, Hardcore/Noise/Avantgarde/Experimental/Grindcore/Musique Concrète
Various
45'18"
2002, CD, Comp, Korm Plastics, 
,
, Musique Concrète/Experimental
Various
Batofar Cherche... La Suisse
2002, CD, Comp, Promo, Smplr, Batofar, ,
, Abstract/Musique Concrète/Modern Classical/Minimal/Ambient
Various
State Of The Union 2.001
2001, 3xCD, Album, Comp, Electronic Music Foundation, ,
, Spoken Word/Free Jazz/Modern Classical/Avantgarde/Contemporary/Experimental
Hrvatski
Remixplosion / Compilatrix
2001, 2xCDr, Comp, Not On Label, ,
, Breakbeat/Abstract/Drum n Bass/Ambient
Various
Sample Minds
2001, 2x CD, ,
, Glitch/Abstract/Noise/Spoken Word/Experimental
Various
Falsch
2000, CD-ROM, Mini, Comp + 35xFile, MP3, 128 + 2xFile, M, Falsch, Falsch
Various
Nature Is Perverse
2000, 2xCD, Album, Comp, Fylkingen Records, 
,
, Abstract/Noise/Experimental
Various
Variious
2000, 2xCD, Comp, Ltd, Num, Intransitive Recordings, ,
, Abstract/Minimal/Experimental
Various
No Nothing - No Music Festival 2000
2000, 6xCD, Comp + Box, Ltd, Num, Non Musica Rex
Various
LOUD : : QUIET
2000, 2xCD, Ltd, BOXmedia
Various
LANding
2000, CD, Comp, Medien.Kunst.Tirol, Triton Verlag, ,
, Experimental
Various
RRR 500 (Various 500 Lock-Grooves By 500 Artists)
1998, Vinyl, ,
, Alternative Rock/Noise/Spoken Word/Abstract/Drone/Hardcore/Industrial/Experimental
Various
Live At WREK
1997, CD, Comp, WREK, ,
, Punk/Contemporary Jazz/Avantgarde/Art Rock/Free Improvisation/Ambient/Experimental
Various
CD Voor De Instabiele Media / CD For The Unstable Media
1992, CD, Comp, V2_Archief, ,
, Industrial/Noise
Various
State Of The Union
1992, 2x CD, ,
, Free Jazz/Avantgarde/Experimental
Various
Testament
1991, 5x7" + Box, Comp, RRRecords, ,
, Experimental/Musique Concrète/Field Recording/Noise
Various
Bad Alchemy Nr 13
1989, Cass, Comp, C50, Bad Alchemy
Various
Imaginary Landscapes: New Electronic Music
1989
Various
Bring The Noise
Cass, Comp, C10, LowLife (2)
Marolo
Noise Retrospective 1913-2007
2007, File, MP3, Mixed, Unofficial, 160, Spannered, ,
, Experimental/Modern/Musique Concrète/Contemporary/Drone/Field Recording/Industrial/Noise/Ambient/Avantgarde/Rhythmic Noise/Abstract/IDM/Glitch/Minimal/Illbient
Various
RRR Taste Test 1992 Vol 10
1992, Cass, P/Unofficial, Promo, RRRecords, ,
, Experimental/Abstract/Avant-garde Jazz/Dark Ambient/Electroacoustic/Sound Collage/Musique Concrète/Industrial/Sound Art/Synthwave
Various
An Increase Of Fifteen Degrees
Cass, Comp, Ltd, Mixed, Unofficial, C90, Mystery Spot