Fritz Hauser (1953, Switzerland) is an improvising percussionist who has established his innovative and encyclopedic style (restricted to the simplest forms of drums and cymbals) with the solo performances of Solodrumming (1985), recorded in a building whose acoustics provide a seven-second echo, and Pensieri Bianchi (1990), as well as the twin discs Die Trommel (1988) and Die Welle (1988). He has also recorded several collaborations with Urs Leimgruber.

The double-cd album Deep Time (Deep Listening, 2005) contains two performances of a Fritz Hauser composition commissioned in 1991, and here performed by Fritz Hauser on percussion and found sounds Pauline Oliveros on accordion, David Gamper on small instruments and Urs Leimgruber on saxophones, improvising with/against Hauser's tape of sounding stones, watches and clocks. The real protagonist is the tape (and the post-processing of the instrumental sounds). Hauser's tape carries out a broad sonic excursion that explores all dimensions of sound. For example, the intensity ranges from loud/chaotic to almost pure silence (mostly the latter).

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