Four Pieces op.40 Ralph Sauer has beautifully arranged four movements from Four Pieces Opus. 40 for Trombone and Piano: 1. Chanson Triste 2. Valse 3. Rêverie interrompue 4. Danse russe These four movements, totaling fourteen minutes offer the artist a great deal of musical contrasts, ranging from lyrical, dramatic, dance-like, etc. An excellent collection of the Russian masters music for the Trombone.