The following chapters of a music (band) book were seen on the back of a t-shirt:

Chapter 1: Traditional and New Fingerings
Chapter 2: Why Some Instruments Are Bigger Than Others
Chapter 3: Better Tonguing Through Improved Mouth Position
Chapter 4: Technique to Control Squealing
Chapter 5: How to Handle a Climax During Performance
Chapter 6: How Far to Push In
Chapter 7: When to Pull Out

*** Bonus Section ***
Group Sax
*******