Instrumental Compositions, 1964-1992, Undated 2.74 cubic ft.
Series 3 contains musical scores for many of Kastle's works. The series is broken down into subseries according to the six major instrumental compositions found in this collection. Each subseries usually contains a manuscript score, while some contain a published score. Subseries 3, Concerto No. 1, is the only subseries to contain Musicians' parts and tissues of parts.