MAJOR & MINOR IN EVERY KEY (DUR & MOLL on all the keys) – excellent tutorial PLAY-A-LONG title from JAMEY AEBERSOLD JAZZ publisher that is determined for musicians who want to handle, sensitize and understand music essentials and use them to build their own improvisations, jamm and experience! This book is one of the nicest and the funniest ways of playing scales and training improvisation in the set key signatures for set scales. You don’t have to think out the whole improvisation from it’s beginnings, because you can find and use a short improvisation themes and patterns for major, minor and blues scales in this sheet music book. The book contains 2 CDs. On the first you can find „live“ accompaniment for use with major scales. On the second you can find „live“ accompaniment for use with minor scales. For piano and bass play practice are left and right channels divided this way: Right channel – piano and drums, Left channel – bass and drums. Very worthy, useful and variable title.