7(Keyboard Instruction). Weighing in at nearly 400 pages, the Picture Chord Encyclopedia is the most comprehensive keyboard resource ever! It includes easy-to-see photos, easy-to-read chord diagrams and treble and bass clef notation for over 1,600 keyboard chords, plus basic chord theory, a chord symbol chart, and more! Also available in a 9 x 12 Edition (00290528, ISBN 0-634-03290-9).