Online audio with fully orchestrated accompaniment tracks are the hallmark of these instrumental collections. Each book contains a carefully edited part that is appropriate for the Level 2-3 instrumentalist. The audio include a demo track with a live instrumental performance, followed by a play-along track. Songs include: Beat It • Billie Jean • Black or White • Don’t Stop Till You Get Enough • Human Nature • I Just Can’t Stop Loving You • Man in the Mirror • She’s Out of My Life • Thriller • The Way You Make Me Feel • You Are Not Alone.

The woodwinds and brass books are compatible with each other and can be played together or as solos; the strings books are compatible with each other, but not with the woodwinds and brass instrument editions. Audio is accessed online using the unique code inside the book and can be streamed or downloaded. The audio files include PLAYBACK+, a multi-functional audio player that allows you to slow down audio without changing pitch, set loop points, change keys, and pan left or right.