Essentials of Music Theory Software, Version 2.0, Volume 1. (For 5 computers (1 Educator, 4 Students)). By Andrew Surmani and Morton Manus. Reference Textbooks; Textbook - General; Theory. Essentials of Music Theory. Software. Published by Alfred Music Publishing

Essentials of Music Theory, Book 1 by Andrew Surmani and Morton Manus. Reference Textbooks; Textbook - General; Theory. Essentials of Music Theory. Book. 40 pages. Published by Alfred Music Publishing