Santorella's "Know Before You Blow" series is the break-through approach to jazz improvisation that has been missing and is now offered to all aspiring jazz musicians as an essential resource for improving their ability to improvise or simply put, play jazz. All seven modes are clearly defined, explained & notated on the text page which precedes each exercise. These text pages display a diagram ofeach mode as well as the compatible chords that "work" for that particular mode.