Trombone with piano - Digital Download SKU: AQ.AMC-BR-002 Composed by Kenneth Amis. Music of Black Composers and Artists. Five preludes for trombone and piano which can be performed separately or as a complete set. Score and Parts. 31 pages. Duration 13 minutes, 15 seconds. Amis Musical Circle - Digital #AMC-BR-002. Published by Amis Musical Circle - Digital (AQ.AMC-BR-002). Five preludes for trombone and piano which can be performed separately or as a complete set.