If you can play all the music transcribed in this book, you can also be the envy of your music professors. Zappa's mastery of irregular rhythmic groupings, sets him well above not only any other guitarist I know, but also above the VAST majority of percussionists( who SPECIALIZE in rhythm .) I divide my time with these scores between trying to play passages, tapping out the rhythm of passages, and marveling at the uniqueness of Frank's guitar playing. Even if you can't play unusually intricate/complex rhythms, THE FRANK ZAPPA GUITAR BOOK is great for keeping any of your more musically skilled friend's egos in check.