ALGORITHMIC CYCLE
Spires (electronic, 1956)
Three 2-Part Inventions (piano, 1960)
Three Pieces (clarinet, 1965)
Five Pieces (flute, bassoon, cello, 1966)
Towers (chamber ensemble, 1968)
Birds (electronics, 1968)
Margins (chamber ensemble, 1972)
Triplum (flute and piano, 1973)
Requiem for Bosque Redondo (brass choir, 1974)
1,000 works (with Emmy) (1980-2003)
Cradle Falling (opera, 1985)
5,000 works (with Emmy) (1992)
Horizons (orchestra, 1994)
Organ Concerto (organ, orchestra, 2000)
Endangered Species (chamber ensemble, 2004)
From Darkness, Light (with Emily Howell) (two pianos, 2004)
5,000 chorales (with Emmy) (2005)
Shadows (with Emily Howell) (disklaviers, 2005)
Land of Stone (with Emily Howell) (chamber ensemble, 2007)
NAVAJO CYCLE
Koosharem (chamber ensemble, 1973)
Triplum (piano, flute, 1973)
Requiem for Bosque Redondo (brass choir, 1974)
Arena (cello, tape, 1974)
Parallax (piano, 1974)
Re-Birth (orchestra, 1975)
Rituals (cello, 1976)
Threshold and Visions (orchestra, 1977)
Cradle Falling (opera, 1985)
Songs from the Navajo (soprano, chamber ensemble, 1995)
I remember Him (gayageum, 2005)
Asymmetries (gayageum, 2006)
Choir of Memory (SATB, Orchestra, 2008)
POST-TONAL CYCLE
Soundpiece (piano, 1959)
Tragic Overture (string orchestra, 1960)
Piano Sonata (piano, 1964)
Variations (piano, wind ensemble, 1965)
Three Pieces for Bassoon (bassoon, 1966)
Contrasts (orchestra, 1966)
Three Pieces for Trombone (trombone, 1966)
Music for Brass and Strings (brass and strings, 1967)
Iceberg Meadow (piano, 1968)
Cycles (flute and bass, 1969)
B.T.R.B. (wind performer, 1971)
Dragoon (chamber ensemble, 1972)
Spirals (tuba, 1972)
Ashes (voice and percussion , 1972)
Margins (chamber ensemble, 1972)
Streams (orchestra, 1973)
Extensions (trumpet, 1973)
Indices (oboe, 1973)
Tyger, Tyger (choir, 1975)
Vectors (chamber ensemble, 1976)
Vortex (chamber ensemble, 1976)
Ceremonies (harp, 1979)
Cello Concerto (cello, orchestra, 1979)
Symphonies 1-5 (orchestra, 1979)
Concert for Piano and Orchestra (piano, orchestra, 1980)
Afterlife (orchestra, 1982)
Into Celestial Spaces (choir, ensemble, 2005)