“Improvisational Patterns: The Bebop Era” is a series of pattern books predicated on the belief that while certain patterns seem to transcend eras and styles, the greater body of improvisational material is of high specificity with regard to its time and place within the jazz continuum. The bebop era initiates the series since in the minds of many people, (the author included), this era is the common practice period of jazz music. While the patterns in this book are also highly specific, they en...