opus number Opus 19. year of composition 1970 movements 5 orchestration basson oboe clarinet percussions piano harpsichord 2 violins violon bass audio https://www.youtube.com/watch?v=oYDhauesIMQ score https://www.kotta.info/hu/product/6812/BOZAY-ATTILA-Sorozat-kamaraegyuettesre creative period 2. middle period: pit digging 1968-1978.