Bohuslav Martinů - Concerto for Two Pianos and Orchestra - YouTube
Martinu Rhapsody-Concerto for Viola and Orchestra (1952)
Bohuslav Martinů - Double Concerto for Two String Orchestras, Piano and Timpani - YouTube
Martinů, Karel Sejna / Karel Ancerl, The Czech Philharmonic Orchestra – Concerto For Two String Orchestras, Piano And Timpani / Three Frescos (1960, Gatefold Sleeve, Vinyl) - Discogs