This General MIDI disk correlates directly to the pieces in Piano Solos Book 4. All track numbers for use with the GM disk are clearly indicated in the book, and are included with the GM disk packet as well. These fully-orchestrated accompaniments by Hal Leonard Student Piano Library method author Phillip Keveren are a delightful way to enhance students' lessons, and are a sure way to guarantee practice success! Click on the audio icon to hear a sample of Latin Logic by Bill Boyd from Piano Solos Book 4.