By Andrew Surmani, Karen Farnum Surmani, And Morton Manus. For Alto Clef (Viola). Textbook - General. Essentials of Music Theory. Book and 2 CDs. 124 pages. Published by Alfred Publishing.

By Karen Farnum Surmani, Morton Manus, and Andrew Surmani. For Alto Clef (Viola). Textbook - General. Essentials of Music Theory. Book. 40 pages. Published by Alfred Publishing.

By Karen Farnum Surmani, Morton Manus, and Andrew Surmani. For Alto Clef (Viola). Textbook - General. Essentials of Music Theory. Book. 44 pages. Published by Alfred Publishing.