Everything you need to write songs and compose music. The Composer Template with the included 50 page manuscript table makes it easy to write songs neatly and professionally. Write all the music notes and symbols consistently. The Transposing wheel gives you all the key the signatures, and makes it easy to to raise and lower the music in half steps for different voices. The chord Wheel give you all the notes of 300 different chords. The Pocket Dictionary is the best reference on the market for precise music terms. As a kit, it's the best, and most complete you will find on Amazon,or anywhere else!