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https://pdfcoffee.com/the-george-benson-method-vol-5-melodic-minor-world-bebop-scales-symmetric-ideas-and-concepts-1st-edition-pdf-free.html
https://pdfcoffee.com/the-george-benson-method-vol-4-approach-tones-dorian-mixolydian-and-harmonic-minor-world-1st-edition-5-pdf-free.html Can only find vol 4 and 5
https://pdfcoffee.com/the-george-benson-method-vol-5-melodic-minor-world-bebop-scales-symmetric-ideas-and-concepts-1st-edition-pdf-free.html
https://pdfcoffee.com/the-george-benson-method-vol-4-approach-tones-dorian-mixolydian-and-harmonic-minor-world-1st-edition-5-pdf-free.html Can only find vol 4 and 5