L' infinito for vocal quintet and 17 instruments, 1990 - Keuris, Tristan 1946-1996 (Donemus, 1990)
Title from resource description page (viewed October 13, 2015). - Written in 1990. - For solo voices (SMzATB), 2 flutes, oboe, 2 clarinets, bassoon, horn, trumpet, percussion (2 players), harp, piano/celesta, 2 violins, viola, violoncello, and double bass