Instrumental Duet,Piano Bassoon,Flute,Instrumental Duet,Piano - Level 3 - Digital Download SKU: A0.966376 Composed by Robert Schumann. Arranged by Alexander Viazovtsev. Contemporary. Score and parts. 106 pages. ALEXANDER VIAZOVTSEV #6696613. Published by ALEXANDER VIAZOVTSEV (A0.966376). This Piano Trio is roughly 26 minutes in length. The piano part has been unchanged. The original parts of violin and cello are now for flute and bassoon. .