(Berklee Guide). Expand the creative breadth of your soloing The step-by-step exercises and explanations in this tried-&-true resource will help you develop your ear and improve your technique. You'll learn the intimate relationships between modes and chords, practicing licks and solos that grow out of their underlying harmonies and sound natural. Andy McGhee has taught at Berklee since 1966, before which he toured with Lionel Hampton and Woody Herman. He has taught thousands how to improvise.