Viola Duet Viola - Level 4 - Digital Download SKU: A0.540501 Composed by W. Mozart. Arranged by Linda M. Scott. Classical. Score. 10 pages. Linda M Scott #4292499. Published by Linda M Scott (A0.540501). Wolfgang Amedeus Mozart (1756 – 1791), was a brilliant, prolific and influential composer of the Classical Period. This piece is based on a duo written for cello and bassoon. A fun, brisk duo for two violas, this piece is equally challenging for both parts. Suitable for advanced student and other chamber groups.