2 classical music CDs. Release date: 1991. The set contains a plastic jewel case containing 2 CDs, and a 60-page booklet containing a listing and an introduction in English (and 3 other languages). all in a card slip-case . 132 minutes. CD 1 Divertimento (String Trio) in E flat, KV 563. Duo for Violin and Viola in G, KV 423. Duo for Violin and Viola in B flat, KV 424. CD 2 Sonata (Trio) for two Violins and Cello in B flat, KV 266/271f. Six Preludes and Fugues for Violin , Viola and Cello, KV 404a.