12 – 1933, for Mezzo-Soprano and string quartet Cinq pièces faciles op. 138 – 1968, for clarinet or alto saxophone and piano Colas Chacha – ?, for large orchestra Colindas op. 87 – 1955, for three-part choir a cappella Concert à cinq op. 38 – 1939, for flute, violin, viola, cello and diatonic harp Concertino op. 42 – 1940, for cello and orchestra Concertino op. 42 – 1940, for cello and piano Concertino op. 122 – 1964, for viola and piano Concertino op. 122 – 1964, for viola and string orchestra Concerto grosso op. 60 – 1944, for wind quintet and string orchestra Concerto n°2 op. 124 – 1964, for violin and orchestra Concerto n°2 op. 124 – 1964, for violin and piano Concerto n°2 op. 131 – 1967, for 2 pianos Concerto n°2 op. 131 – 1967, for piano and orchestra Concerto n°3 op. 162 – 1973, for 2 pianos Concerto n°3 op. 162 – 1973, for piano and orchestra Concerto op. 11 – 1933, for violin and orchestra Concerto op. 11 – 1933, for violin and piano Concerto op. 30 – 1937, for 2 pianos Concerto op. 30 – 1937, for piano and orchestra Concerto op. 54 – 1942, for viola and orchestra Concerto op. 54 – 1942, for viola and piano Concerto op. 155 – 1971, for guitar and small orchestra Contes op. 76 – 1951, for trumpet and piano Contrastes op. 143 – 1969, for 2 guitars Croquis pour un carnaval op. 137 – 1968, for clarinet quartet and diatonic harp Croquis sportifs op. 85 – 1954, for band Danses bulgares op. 103 – 1961, for band Danses bulgares op. 103 – 1959, for flute, oboe, clarinet, horn and bassoon Danses bulgares op. 103 – 1959, for piano De tijd – ?, for Children's choir and piano Déités op. 160 – 1972, for orchestra Deux danses rituelles op. 105 – 1960, for small orchestra Deux mélodies – 1933, for middle voice and piano Deux poèmes op. 53 – 1942, for Soprano and piano Divertimento op. 86 – 1955, for saxophone quartet and orchestra Du rythme à l'expression I op. 108 – 1961, for piano Du rythme à l'expression II op. 108 – 1961, for piano Echecs op. 96 – 1957, for piano Enfantines op. 52 – 1942, for middle voice and piano Epouvantail op. 74 – 1950, for orchestra Epouvantail op. 74 – 1950, for piano