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- Analog #1 (Noise Study) (1961), 4:23
- Arbor Vitæ (2006), 13:10string quartet
- Blues for Annie (1975), 5:00viola
- Bridge (1984)2 four-hand pianos
- Chorale for Violin and Piano (1973)violin and piano
- Cognate Canons (1993), 24:58string quartet and percussion
- Collage #1 (“Blue Suede”) (1961), 3:22stereo fixed medium
- Collage No. 2, Viet Flakes (1967), 7:00
- Dialogue (1963), 4:08
- Diaphonic Study (1997), 18:25string quartet and piano
- Do You Want to Know a Secret (1963)Arr. James Tenney, 1992piano
- Entrance / Exit Music (1961)
- Ergodos I (1963)
- Ergodos II (for John Cage) (1964), 18:24
- Fabric for Ché (1967), 9:50
- For Ann (rising) (1969), 11:47fixed medium
- Form 5 (1993)
- Harmonium No. 3 (1980-90)
- Harmonium No. 5 (1978)violin, viola and cello
- In a Large, Open Space (1994)12 or more sustaining instruments
- Koan for String Quartet (1984), 18:38string quartet
- Love Me Do (1958-59)Arr. James Tenney, 1992piano
- Monody (1959)
- Music for Player Piano (1963-64), 5:48
- Phases (for Edgard Varèse) (1963), 12:20
- Postal Pieces (1965-71)
- Beast (1971)double bass
- A Rose is a Rose is a Round (1970)voice
- (night) (1971)free instrumentation
- Koan (1971)violin
- Maximusic (1965)percussion
- Swell Piece (1967)more than three instruments
- Swell Piece #2 (1971)5 or more different sustaining instruments
- Swell Piece #3 (1971)8 or more different sustaining instruments
- August Harp (1971)harp
- Cellogram (1971)cello
- percussion
- Quintext I-V: Five Textures (1972), 30:33string quartet and double bass
- Spectra for Harry Partch, 9:14
- Saxony (1978-84), 23:54string quartet and delay
- Seegersong No. 1 (1999)bass clarinet
- Spectrum 1 (1995)
- Stochastic String Quartet (1963), 2:48string quartet
- String Quartet in One Movement (1955), 3:30string quartet
- Three Indigenous Songs (1979)2 piccolos, alto flute, bassoon and 2 percussions
- Three New Seeds (1991)clarinet, trumpet, piano, percussion and double bass