Instrumental Duet,Piano Instrumental Duet,Piano,Viola,Violin - Level 3 - Digital Download SKU: A0.945159 Composed by Rupert Kirby. Contemporary,Standards. Score and parts. 6 pages. Rupert Geoffrey Kirby #5710555. Published by Rupert Geoffrey Kirby (A0.945159). A short fun trio in a baroque/classical style. Perfect for a quick encore!