What other people have said...

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"This invention is an absolute work of genius, useful for people trying to get their heads round scales and arpeggios, or equally useful for those who have been experts for years want a compact way to look up advanced technique. Everyone should own one." Mr. P (Amazon.co.uk)

"Comprehensive, going way beyond Major scales. The explanations are always explicit and easy to follow... Lots of sensible tips to aid accuracy... A valuable tool for the music teacher, especially in the classroom context. Above all... fun, transforming a dull theoretical exercise into an engaging activity." To read full review from Music Teacher Magazine click here

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It is an excellent learning facilitator for those students studying music, and especially students of contemporary music, jazz, and theory" The Music Teachers' Assoc of South Australia