Signed candid photograph of the prolific German composer, violist, conductor and teacher, shown smiling in rehearsal at the podium. He has signed at the lower left. In fine condition; tipped to (and easily removable from) mount which has some slight foxing. 4.75 x 6.75 inches (12.1 x 17.4 cm), mounted to 6 x 8 inches (15 x 20.2 cm).