8 Saluti for piano (2001-03)
A chi fa notte il giorno for narrator (ad libitum) and double bass (1993)
Adagio op. 8 for flute, clarinet, bassoon, piano and 2 violins (1966-67)
Addii violin, cello and piano (1995-96)
Ai piedi del faro for double bass and 8 instruments (flute -also piccolo and alto flute-, oboe -also english horn-, clarinet -also bass clarinet-, bassoon -also contrabassoon, horn, violin, viola, cello) (1986)
Albumblätter for piano (1967-68)
Allegro op. 8 for flute, clarinet, bassoon, piano and 2 violins (1966)
Bab for viola (2003)
Bagatelles sans et avec tonalité for 4 hands piano (1992)
Bremer Trio for flute, cello and piano (2006)
Capricornus versus Leonem for bassoon, viola, cello and double basso (2008)
Chi ha fatto il male e chi l’ha subito for narrator and string quartet (2003)
Cinque istantanee for double bass (1988-91)
Come d’autunno. In memoriam Francesco Pennisi for flute, clarinet, violin, cello and piano (2000)
Dal diario: 22 novembre 1970, gli emigrati italiani dimostrano a Lussemburgo for narrator and piano (1970)
Dal diario: Trieste, agosto 1970 for piano (1970)
Das ist kein Bach, sagte Beethoven, das ist ein Meer! for 7 players (1968)
Das ist kein Bach, sagte Beethoven, das ist ein Meer! for 5 players (1993)
Delmen-Gruss for 10 instruments (flute, oboe, clarinet and bass clarinet, horn, trumpet, 2 violins, viola, cello, double bass) (2003)
Delmen-Gruss for piano (2003)
Divertimento for piano (1963)
Due brevi pezzi facili per pianoforte (1960)
Due brevi pezzi per pianoforte (1963)
Echo de Syrinx for flute (2009)
Einklang for oboe and 7 instruments (english horn, trombone, timpani, piano, viola, cello, double bass) (1980)
Einstein-Dialog for flute and cello (2005)
Ein Walzer für Hans for giutar and marimba (2011)
Elegos op. 5 for violin and piano (see Notes)
Elegy for violin and piano (1965)
Essay for double bass (1975)
Essay 2 for bass clarinet (1979)
Essay 3 (“Steiner”) for cello (2003)
Farewell. Alan Marks zum Gedenken for violin, cello and piano (1996)
Flatus for 4 flutes (1997-99)
Für Flori for violin and piano (accompagnamento pianistico ad libitum) (1989-90)
Geburtstagsgruss für Thomas und Bernhard for violin and viola (2003)
Gefängnistagebuch for soprano, flute, clarinet, guitar, piano and percussion (1972)
Gespräch über Bäume for 9 players (flute -also piccolo and alto flute-, clarinet -also bass clarinet-, trombone, piano -also celesta-, 2 percussions, violin, viola, cello) (1976)
Gilgul, in memory of the victims of the nazi massacre of August 12,1944 in Sant'Anna di Stazzema, Italy
for trumpet and organ (2010)
Gli uomini sono liberi for narrator and piano (2003)
Gruss for cello (1994)
Hurbinek for narrator and piano (2000)
Il mondo è bello perché è vario for piano (1971)
Infra for 11 instruments (flute -also piccolo and alto flute-, clarinet -also bass clarinet and e-flat clarinet-, bassoon -also contrabassoon-, horn, trombone, double bass tuba, percussion, piano, violin, cello, double bass) (1997)
Invocazione e ditirambo (secondo Divertimento) op. 7 for 2 four hands pianos (1965)
Iol for flute and violin (2000)
Jahreswechsel for 16 instruments (flute -also piccolo-, oboe -also english horn-, clarinet -also bass clarinet and double bass-, bassoon -also contrabassoon-, horn, trumpet, trombone, double bass tuba, piano, percussion -2 players-, 2 violins, viola, cello, double bass) (1993-94)
Klavierduo for 2 pianos (1978-79)
Memoria for narrator and 4 instruments (clarinet, violin, cello, piano) (2008)
Mirum for 4 trombones (1984)
Musica in memoria di Barbara Baldovino for flute, oboe e harpsichord (1967)
Negli anni terribili dell’epurazione for narrator and piano (2003)
Nel vento, con Ariel for flute (2004)
…nicht…(für HE) for 5 players (1998)
Non requiescat. Musica in memoria di Hanns Eisler for ensemble (flute, oboe, clarinet, bassoon, horn, trumpet, percussion, string quintet) (1973)
Praeludium for ensemble (flute -also piccolo-, clarinet -also bass clarinet-, horn, trumpet, piano, percussion, string quintet (2000)
Primo quartetto (Quartett vom “Armen Mann”) for string quartet (1991-92)
Proporzioni for 4 trombones (1968-69)
Psalmus VI di Josquin Desprez (parte prima) for 9 instruments (oboe, clarinet, horn, trumpet, trombone, violin, viola, cello, double bass) (1991)
Rnnili for viola (1995)
Rufe for flute, oboe, clarinet, bassoon and horn (1999)
Salut für Johannes Aaron for violin, cello and piano (1997)
Schattenspiel for bass flute (1984)
Schegge for flute, clarinet and horn (1984)
Sei bagatelle di fine estate for different instruments groups from 1 to 11 players (flute -also piccolo-, oboe -also english horn-, clarinet -also bass clarinet-, horn, trumpet, violin, viola, cello, double bass, percussion, harp -might be substituted by piano in the first piece-, piano) (1983)
Senza titolo for piano (1957)
Senza titolo for piano (1958)
Senza titolo for piano (1962)
Senza titolo for violins (1989)
(Senza titolo) for 3 b flat trumpets (1995)
Senza titolo for 3 trumpets (2000)
Sette piccoli pezzi for flute (1965-77)
Sisifo felice for 8 players (flute -also piccolo-, clarinet -also bass clarinet, percussion, harp, mandolin, guitar, viola, double bass) (1985)
Sisyphos for 8 instruments (bass flute, bass clarinet, mandolin, guitar, marimba, harp, viola, double bass) (1984)
Sisyphos II for 14 instruments (flute -also piccolo-, oboe -also glockenspiel-, 2 clarinets -I. also e-flat clarinet-, horn, trumpet, trombone, percussion, piano, 2 violins, viola, cello, double bass -plays also the third anvil-) (1984)
Sisyphos III for narrator and ensemble (flute -also piccolo and alto flute-, oboe -also english horn-, clarinet -also e-flat clarinet and bass clarinet-, bassoon -also contrabassoon-, horn, trumpet, trombone, 2 violins, viola, cello, double bass) (1988-89)
Sonata in due movimenti for clarinet and piano (1963-64)
Sonatina in stile classico for harpsichord (1959)
Thamar y Amnòn for guitar (1983)
Tre brevi pezzi for flute
Tre invenzioni op. 4 for flute (1965)
Tu sbagli, Signore for narrator and piano (2003)
Un Valzer per Roberto e Alessandra, con un pizzico di Tango e una fugace apparizione di Dmitri Šostakovič for four hands piano (2006)
Valzer for piano (1955)
Variazioni su “Avanti popolo alla riscossa” for piano (1977)
Warum? Secondo Quartetto per archi (2006)
Wiederkehr for piano (1971)
Winterblumen. In memoriam Cornelius Cardew for flute and harp (1982)