1. Concerto for Trombone (1769) Collection: Concert Programs (SOM) Contributers: Wagenseil, Georg C. (composer), Charles Isaacson (trombone), and Michele Heerema (piano) Performance: Graduate Recital (DMA) Performance Date: 1974-07-15 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.23 p.287