Everyone who has ever tried to improvise knows that it is not a game with no rules and that you can´t play anything you want and when you want but you need to follow certain harmony, know single notes of chords and scales which the specific chords have for their origin. Basically what seems to be that simple in real needs many hours of work and practising. This book will help you to learn how to improvise in different scales (major and minor) and also in different jazz rhytms such as Bossa Nova, Swing, Shuffle, etc. Two CDs are enclosed (first one contains major excercises and second one minor ones) with the recordings of great "life" rhytmical accompaniement (piano, bass, drums) for the specific excercises and compositions. For practising playing the piano or bass guitar right and left channels are divided- R-piano, drums and L-bass drums. It is also suitable for jazz singers who wish to learn how to improvise and sing the right notes for the right chors, scale or harmony. Very precious and helpful book!!!