Original: Six Duos, Op. 9. Six Duos, Op. 9 composed by Felix-Jean Prot. Viola sheet music. Edited by Kenneth Martinson. For 2 violas. Level 5.
Translation: This edition. Urtext, Bookstyle Bound. In the keys of E-flat, C, G, A, D, F. Classical. of 6. Playing score.
