Instrumental Duet Instrumental Duet,Piano,Viola - Level 3 - Digital Download SKU: A0.1030874 Composed by Trisha Brandt. Baroque,Classical,Instructional,Standards. Score and parts. 4 pages. Trisha Brandt #29803. Published by Trisha Brandt (A0.1030874). A 3/4 time signature duet for viola and piano/harpsichord in the style of baroque classical period. Length: 5 min.