Two very different contemporary composers. Schaeffer is noise, tape looping, sound collage, electroacoustic. Partch is microtonal instrument builder, recordings are mostly chamber and live. (Partch, Schaeffer)

This is a very simple island, but composers are not the most known. Remember that Schaeffer is mainly noise, electronic music and sample experimenter. While Ades writes more music for real instruments and vocal. (Ades, Schaeffer)