| Code | Title | Time | Year | City, Country | Price | Instrument |
| 6.01 | Divertimento for 7 Instruments obs: unfinished work |
1941 | not available | flute, cor anglais, tenor saxophone, timpano, violin, violoncello, double bass | ||
| 6.02 | Kleine Fanfarre (for students) translation: Small "Fanfarra" for students; work commissioned by Professor Pfeiffer, Germany |
18-01-1983 | Baden Baden, Germany | €50.00 | 3 horns, timpano, organ | |
| 6.03 |
Música de Câmara 1944 dedicated to: Curt Lange; first performance: Palermo (Argentina), 1949 obs: work especially written for the Latin American Music Bulletin, vol. VI; Edition Blam, Montevidéu, Uruguai |
10’00 | 20-06-1944 | Rio de Janeiro, Brazil | €50.00 | flute, piccolo, clarinet, bass clarinet, piano, violin, violoncello |
| 6.04 | Mutationen VIII obs: combination of Mutationen II, IV, V, VI; other versions: 5.02 (with tape) & 15.13 |
8’00 | 1975 | €30.00 | string quartet, piano | |
| 6.05 | Mutationen XII other versions: 7.29 & 15.16; obs: combination of Mutationen II, IV, V, VI & XI |
8’00 | 1976 | €30.00 | 2 violins, viola, violoncello, double bass | |
| 6.06 | Wind Quintet 1 Alegre 2 Lento 3 Vivo first performance by Quinteto de Sopros de Mannheim, Mannheim, Germany, 1974 |
12’00 | 1942 | €50.00 | flute, oboe, clarinet, bassoon, horn |