Who are some famous composers for viola?
from wikipedia: Among the great composers, several preferred the viola to the violin when playing in ensembles, the most noted being Ludwig van Beethoven, J.S. Bach[7] and Wolfgang Amadeus Mozart. Numerous other composers also chose to play the viola in ensembles, including Joseph Haydn, Franz Schubert, Felix Mendelssohn, Antonín Dvořák, and Benjamin Britten.