
| Category | Title | ↓ Created | Duration | Instrumentation |
|---|---|---|---|---|
| Ensemble/chamber orchestra and solist(s) Ensemble/chamber orchestra with horn | Hamburgisches Konzert for solo horn and chamber orchestra (with two basset horns and four obligatory natural horns) | 1998-1999/2002 | 15' | 20 |
| Solo works piano | Études pour piano Troisième livre | 1995-2001 | 12' | 1 |
| Vocal music voice and instrumental ensemble | Síppal, dobbal, nádihegedüvel based on poems by Sándor Weöres for mezzo soprano and 4 percussionists (Hung.) | 2000 | 14' | |
| Choir and orchestra | Requiem for soprano and mezzo soprano solo, two five-part choirs and orchestra | 1963-1965/1997 | 27' | 74 |
| Chamber music 2-8 players saxophone quartet | Sechs Bagatellen from Musica ricercata | 1997 | 13' | 4 |
| Stage works opera | Le Grand Macabre Opera in four scenes | 1974-1977/1996 | 02 00' | 49 |
| Electronic music | Pièce Electronique Nr. 3 realised by the Institut voor Sonologie, Koninklijk Conservatorium, Den Haag, by Kees Tazelaar and Johan van Kreij | 1957-1958/1996 | 02'05'' | 1 |
| Solo works piano | Études pour piano Deuxième livre | 1988-1994 | 23' | 1 |
| Solo works viola | Sonata for viola solo | 1991-1994 | 22' | 1 |
| Solo works accordion | Eight Pieces from Musica ricercata | 1951-1953/1994 | 17' | 1 |
| Vocal music vocal ensemble | Nonsense Madrigals based on texts by William Brighty Rands and Lewis Carroll as well as an English translation of Slovenly Peter (Heinrich Hoffmann) | 1988-1993 | 13' | 6 |
| Soloist(s) and orchestra with trumpet | Mysteries of the Macabre Three arias from the opera Le Grand Macabre for solo trumpet in C and orchestra | 1974-1977/1992 | 09' | 39 |
| Soloist(s) and orchestra with violin | Concerto for violin and orchestra | 1990-1992 | 28' | 24 |
| Vocal music voice and orchestra | Mysteries of the Macabre Three arias from the opera Le Grand Macabre for coloratura soprano and orchestra | 1974-1977/1992 | 08' | 40 |
| Vocal music voice and instrumental ensemble | Mysteries of the Macabre Three arias from the opera Le Grand Macabre · Version for coloratura soprano and ensemble arranged by Elgar Howarth | 1974-77/1992 | 08' | 16 |
| Ensemble/chamber orchestra and solist(s) Ensemble/chamber orchestra with trumpet | Mysteries of the Macabre Three arias from the opera Le Grand Macabre · Version for C trumpet arranged by Elgar Howarth | 1974-1977/1991 | 09' | 16 |
| Vocal music voice and piano | Der Sommer based on Friedrich Hölderlin for voice and piano | 1989 | 03' | 2 |
| Soloist(s) and orchestra with piano | Concerto for piano and orchestra | 1985-1988 | 22' | 14-40 |
| Ensemble/chamber orchestra and solist(s) with piano | Concerto for piano and orchestra | 1985-1988 | 22' | 14-40 |
| Vocal music voice and piano | Mysteries of the Macabre Three arias from the opera Le Grand Macabre for coloratura soprano and piano | 1974-1977/1988 | 08' | 2 |
| Solo works piano | Études pour piano Premier livre | 1985 | 20' | 1 |
| Vocal music choral works a cappella | Magyar Etüdök based on texts by Sándor Weöres | 1983 | 06' | |
| Chamber music 2-8 players trio | Trio for violin, horn (F/Bb) and piano | 1982 | 22' | 3 |
| Chamber music 2-8 players duo | Hommage à Hilding Rosenberg for violin and violoncello | 1982 | 01' | 2 |
| Vocal music choral works a cappella | Drei Phantasien based on Friedrich Hölderlin | 1982 | 11' | |
| Solo works harpsichord | Passacaglia ungherese for harpsichord | 1978 | 05' | 1 |
| Solo works harpsichord | Hungarian Rock Chaconne for harpsichord | 1978 | 05' | 1 |
| Stage works | Rondeau One-man theatre for an actor and tape | 1976 | 30' | 2 |
| Chamber music 2-8 players two pianos | Monument · Selbstportrait · Bewegung Three pieces for two pianos | 1976 | 17' | 2 |
| Ensemble/Chamber orchestra wind ensemble | Sechs Miniaturen for wind ensembles | 1953/1975 | 13' | 10 |
| Orchestra | San Francisco Polyphony for orchestra | 1973/1974 | 11' | 71 |
| Choir and orchestra | Clocks and Clouds for 12 voice female choir and orchestra | 1972-1973 | 13' | 38 |
| Soloist(s) and orchestra with two soloists | Double Concerto for flute, oboe and orchestra | 1972 | 15' | 35 |
| Orchestra | Melodien for orchestra | 1971 | 13' | 16-39 |
| Ensemble/Chamber orchestra | Melodien for orchestra | 1971 | 13' | 16-39 |
| Ensemble/Chamber orchestra ensemble | Chamber Concerto for 13 instrumentalists | 1969-1970 | 21' | 13 |
| Ensemble/Chamber orchestra string orchestra | Ramifications for string orchestra or 12 solo strings | 1968-1969 | 09' | 12-20 |
| Solo works organ | Zwei Etüden für Orgel | 1967/1969 | 12' | 1 |
| Chamber music 2-8 players wind quintet | Zehn Stücke für Bläserquintett | 1968 | 15' | 5 |
| Chamber music 2-8 players string quartet | String Quartet No. 2 | 1968 | 21' | 4 |
| Solo works harpsichord | Continuum for harpsichord | 1968 | 04' | 1 |
| Orchestra full orchestra | Lontano for large orchestra | 1967 | 11' | 77 |
| Stage works opera | Aventures & Nouvelles Aventures Musical-dramatic play in 14 pictures | 1966 | 23' | 10 |
| Soloist(s) and orchestra with cello | Concerto for cello and orchestra | 1966 | 16' | 15-40 |
| Ensemble/chamber orchestra and solist(s) with cello | Concerto for cello and orchestra | 1966 | 16' | 15-40 |
| Vocal music choral works a cappella | Lux Aeterna for 16-part choir a capella | 1966 | 09' | |
| Vocal music voice and instrumental ensemble | Nouvelles Aventures for three singers and seven instrumentalists | 1962-1965 | 12' | 10 |
| Solo works organ | Volumina for organ | 1961-1962 | 16' | 1 |
| Vocal music voice and instrumental ensemble | Aventures for three singers and seven instrumentalists | 1962 | 11' | 10 |
| Others mechanical music | Poème Symphonique for 100 metronomes | 1962 | 25' | 2 |
| Orchestra full orchestra | Atmosphères for large orchestra | 1961 | 09' | 88 |
| Ensemble/Chamber orchestra chamber orchestra | Fragment for chamber orchestra | 1961 | 08' | 10 |
| Solo works piano | Trois Bagatelles for piano | 1961 | 01' | 1 |
| Orchestra | Apparitions for orchestra | 1958-1959 | 09' | 79 |
| Electronic music | Artikulation realised at the broadcasting studio for electronic music at the West-German Radio (WDR) Cologne | 1958 | 03'47'' | 1 |
| Electronic music | Glissandi realised at the broadcasting studio for electronic music of the West-German Radio (WDR) Cologne | 1957 | 07'32'' | 1 |
| Vocal music choral works a cappella | Éjszaka · Reggel Two a cappella choirs based on poems by Sándor Weöres for 5 to 8 voiced mixed choir | 1955 | 04' | |
| Vocal music choral works a cappella | Mátraszentimrei Dalok based on Hungarian folk songs for two and three part children's or female choir a capella | 1955 | 05' | |
| Chamber music 2-8 players string quartet | String Quartet No. 1 Métamorphoses nocturnes | 1953-1954 | 21' | 4 |
| Chamber music 2-8 players wind quintet | Sechs Bagatellen from Musica ricercata | 1953 | 13' | 5 |
| Solo works organ | Ricercare for organ | 1953 | 04' | 1 |
| Solo works piano | Musica ricercata for pianoforte | 1951-1953 | 23' | 1 |
| Solo works cello | Sonata for violoncello solo | 1948/1953 | 09' | 1 |
| Vocal music choral works a cappella | Pápainé Hungarian folk ballad for four part choir a cappella | 1953 | 03'30'' | |
| Vocal music choral works a cappella | Inaktelki nóták Three Hungarian folk songs for two part mixed choir a capella (Hung.) | 1953 | 04' | |
| Vocal music choral works a cappella | Haj, ifjúság! Two pieces of Hungarian folk poetry for four part choir a capella | 1952 | 05' | |
| Vocal music choral works a cappella | Két kánon | 1947/1952 | 03' | |
| Vocal music voice and piano | Öt Arany-dal Five songs based on texts by János Arany for voice and piano | 1952 | 11' | 2 |
| Vocal music choral works a cappella | Hortobágy Three Hungarian folk songs for four part choir a capella (Hung.) | 1952 | 05'30'' | |
| Orchestra | Concert Românesc for orchestra | 1951 | 12' | 41 |
| Chamber music 2-8 players piano duet | Fünf Stücke for piano, four-hands | 1942-1951 | 12' | 2 |
| Ensemble/Chamber orchestra chamber orchestra | Baladă şi joc based on Romanian folk songs for school orchestra | 1949-1950 | 03' | 6 |
| Chamber music 2-8 players duo | Baladă şi joc based on Romanian folk songs for two violins | 1950 | 03' | 2 |
| Chamber music 2-8 players string quartet | Andante und Allegretto for string quartet | 1950 | 13' | 4 |
| Vocal music choral works a cappella | Kállai kettős Two adapted Hungarian folk songs for four part choir a capella (Hung.) | 1950 | 03' | |
| Vocal music choral works a cappella | Lakodalmas Adaptation of an Hungarian folk song for four part choir (Hung.) | 1950 | 01' | |
| Vocal music voice and piano | Négy lakodalmi tánc adapted from Hungarian folk songs for three voices or female choir and piano | 1950 | 05' | 2 |
| Ensemble/Chamber orchestra | Régi magyar társas táncok based on works by János Bihari, János Lavotta, Antal Csermák and Márk Rózsavölgyi (18th century) | 1949 | 11' | 7-17 |
| Solo works piano | Capriccio Nr. 1 / Invention / Capriccio Nr. 2 for piano | 1947-1948 | 05' | 1 |
| Vocal music voice and piano | Három Weöres-dal Three songs based on texts by Sándor Weöres for voice and piano | 1946-1947 | 06' | 2 |
| Vocal music choral works a cappella | Bujdosó based on a Hungarian folk song Fölkelt már a csillag (The star has already risen) for three voice choir | 1946 | 02'30'' | |
| Vocal music choral works a cappella | Magos kősziklának Adaptation of an Hungarian folk song for three part choir a capella (Hung.) | 1946 | 02' | |
| Vocal music choral works a cappella | Igeden földön based on texts by Bálint Balassa and folk poetry | 1945/1946 | 04' | |
| Vocal music choral works a cappella | Bethlehemi Királyok Text by Attila József (Hung.; Engl.: Desmond Clayton) | 1946 | 02' | |
| Vocal music choral works a cappella | Magány based on a text by Sándor Weöres | 1946 | 02'30'' | |
| Vocal music choral works a cappella | Húsvét based on an Hungarian folk song Ma van húsvét napja for two three part and one part women's or children's choir a capella (Hung.) | 1946 | 03' |