Improvisation, Variationen und Finale über ein Thema von Mozart (Improvisation, Variation and Finale on a theme by Mozart)
for mandolin, violin, viola and liuto (also for mandolin orchestra). Also for string quartet (Op.60b), Op.60 (1934)

Duration: (op.60) 15'; (op.60b) 18'
First published by Hladky, Vienna
Available from Joachim Trekel: in print (T 6026). Op.60b (string quartet version) available privately.

Performances (selection):

Hladky, Vienna, Oct. 1934
Wiener Mandolinen-Kammervereinigung, Vienna, Dec. 1934; Jan. 1936, Feb. 1936
Wiener Mandolinen-Kammervereinigung, Vienna Radio, Aug. 1935, Jan. 1937
Edinburgh, Dec. 1941
Köln Radio, Jul. 1949
Wiener Mandolinen- und Gitarrenensemble/Hladky, Vienna, May 1961, May 1964, May 1967
Edinburgh Quartet, Edinburgh, May 2004, Apr. 2007 (Op. 60b)