Hal Leonard Bass Aerobics

Bass Aerobics Bass Guitar Exercise Book with Online Audio | 52-Week Practice Program for Beginners and Advanced Players | Improve Speed, Dexterity, and Technique

Guitar Aerobics: A 52-Week, One-lick-per-day Workout Program for Developing, Improving and Maintaining Guitar Technique Bk/online audio

Piano Aerobics 40-Week Workout for Real-World Technique | Jazz, Blues, Rock, and Classical Styles | Improve Hand Independence, Strength, and Articulation | Includes Online Audio for Practice