Dave Hassell has constructed this book in order for the pupil to have the ability to interpret the drum chart whilst understanding the musical concept,and listening to all that is happening around and responding accordingly. It is not meant to be a 'How to do it' book . It is intended to be more a source of practical material for the benefit of the student and teacher alike.A CD is included to assist you as you explore different rhythm patterns.It is an excellent choice for any modern drummer!