Solo, Nr. 19

Solo was first sketched in 1964 and is closely related to Plus-Minus, Momente, and Mikrophonie I (Stockhausen 2002, 24 and 51). It was composed in March and April 1966 on a commission from the Japanese broadcasting network Nippon Hoso Kyokai, and was premiered in two different versions on 25 April 1966 in a public concert at the NHK in Tokyo which also featured the world premiere of Stockhausen's Telemusik. The soloists were Yasusuke Hirata, trombone, and Ryū Noguchi, flute; the assisting technicians were Akira Honma, M. Nagano, Shigeru Satō, and the director of the NHK studio, Wataru Uenami. The score is dedicated to Alfred Schlee, the director of the Vienna branch of Universal Edition (Stockhausen 1971, 85 and captions to plates 18 and 19, between pages 80 and 81).