Bob Kroepel

• Encyclopedia of Piano Rhythm Patterns
• Creative Keyboard's Deluxe Encyclopedia of Piano Chords
• Mel Bay Creative Keyboard's Deluxe Encyclopedia of Piano Chords
• Mel Bay Keyboard Chord Chart
• Mel Bay's Deluxe Encyclopedia of Piano Chords A complete keyboard study of chords and how to use them
• Deluxe Organ Chords
• Play Piano by Chords
• Play Solo Piano by Chords Book 1