Book excerpt: Joe Diorio is an accomplished guitarist and composer as well as a respected music educator. In this book he combines his skills to present innovative intervallic designs for the guitar. Written in standard notation and tab, these linear, often 12-tone flavored studies reflect Diorio's jazz roots and compositional mastery. Due to the harmonic ambiguity of these lines, the author recommends an experimental approach in applying these examples in various melodic and harmonic settings. the companion stereo CD features Diorio's performance of each of the 96 studies in the book.