Barry Liesch
Keyboard Worship Book 1 Of 4- Keyboard Worship Book 2 Of 4
- Keyboard Worship Book 3A of 4 Advanced Harmonic Techniques
- Keyboard Worship Book 3A of 4 Advanced Harmonic Techniques up/down Thirds, Descending Fifths, Secondary Dominants
- Keyboard Worship Book 3B of 4 Advanced Harmonic Techniques. Altered Sevenths, Borrowed Chords, Extensions, Pedals, Arrangements