Gary Dahl: Mel Bay's Master Accordion Scale Book has been designed to develop the professional or recreational accordionist further toward advanced musicianship.Why do we practice scales The great jazzaccordionist Art Van Damme when asked what he practised replied 'Only the fundamentals.' The fundamental classical and Jazz scales with explanations are presented here in a clear concise format.
Gary Dahl: Master Accordion Scale Book: Accordion: Instrumental Reference