Hal Leonard Jazz Piano Technique - Exercises, Etudes & Ideas For Building Chops (Book/Online Audio) Length: 12.200 Weight: 1.5Hal Leonard Jazz Piano Technique - Exercises, Etudes & Ideas For Building Chops (book/online Audio) available on June 25 2018 from Newegg for itemprop="offers" target="_external" title="" itemscope itemtype="http://schema.org/Offer">19.99