Morton Manus

Essentials of Music Theory Software, Version 2.0

2000

Alfred's essentials of music theory

2004

Essentials of Music Theory

2002

Alfred's Basic Piano Prep Course CD for Lesson Book

1999

Yamaha Guitar Method

1996

Alfred's Teach Yourself to Play Piano

2015

Alfred's Teach Yourself to Play Bass

2015

Alfred's Interactive Musician

2006

Alfred's Essentials of Music Theory

2006

Alfred's Basic Piano Library Theory, Bk 1A

2016

Alfred's Basic Group Piano Course

2006

Yamaha Guitar Method, Book 2

1996

Music Made Easy

2005

Best Beginner Piano Books for Adults : Alfred's Basic Adult Piano Course

2021

Basix Guitar Method

2006

Basix Guitar Method, Bk 1

1996

Alfred's Teach Yourself to Play Recorder

1996

Alfred's Essentials of Music Theory

2006