jazz-guitar-improvisation-practice-routine-so-what-backing-track Leave a Comment / By Greg O'Rourke / February 22, 2016 https://www.fretdojo.com/wp-content/uploads/2016/02/jazz-guitar-improvisation-practice-routine-so-what-backing-track.mp3 “jazz-guitar-improvisation-practice-routine-so-what-backing-track”.