Sonate for Bass Clarinet (or Violoncello) and Piano Op. 23 by Stefan Heucke. Schott, 2005, SS, 31 + 9 pages (includes both bass clarinet and cello parts). Stefan Heucke (1959-) is a German composer of contemporary music. This piece is dedicated to Henri Bok who gave the first performance in 1996. This is a challenging piece which calls for a range from the high altissimo to the bottom of a low C instrument, one repeated multiphonic, and some other extended techniques. In three movements: I. Ballade, II. Variationen, and III. Elegie. Duration about 23 minutes. (C1456)