Workbook for Tonal Harmony

Alfred's Essentials of Music Theory: A Complete Self-Study Course for All Musicians (Book & 2 CDs)

The Musician's Guide to Theory and Analysis

GP661 - Fundamentals of Piano Theory - Level 1

Alfred's Essentials of Music Theory, Bk 1

Bastien Piano for Adults, 1 Book/Online Access: A Beginning Course: Lessons, Theory, Technic, Sight Reading

Alfred's Basic Piano Library Theory, Bk 2

Musicality: How you too can learn music like a gifted prodigy, unlock your musical instinct, and unleash your inner natural.

Music Theory for Guitarists, the Complete Method Book: Volumes 1, 2 & 3 of the Music Theory for Guitarists Series in a Single Edition

Alfred's Basic Piano Library Lesson Book, Bk 4