Like most works by Britten, it has a really meaty viola part!

The viola part is brilliantly written.

The viola part is played by music historian and Stanford professor Stephen Hinton.

For the first time in a symphony, Mozart uses two obligatory viola parts.

Composed at the age of 12, this is Mozart's earliest surviving mass setting, and his only missa brevis to feature a viola part.

Its transparency and crispness result partly from the amalgamation of the second violin and viola parts into a single independent voice.

The concerto grosso is more carefully worked out, with an independent viola part and modifications to accommodate the string soloists.

The "viola part" to the Sonata movement is not to be played by a viola.

The viola part uses the C-clef in the alto position.

It has also been arranged for cello in place of the viola part.