''Soner 9 Power!'' is the most recent edition of the best-selling ''Sonar Power'' book series providing detailed training for Cakewalk's Sonar 9 music recording software. Written for both new users and veteran upgraders alike, ''Sonar 9 Power!'' walks users through all of the features of the software with step-by-step instructions and exercises. New users will start at the beginning and learn everything they need to know to use Sonar for recording, editing, producing, mixing, and bringing their music to the masses. Upgraders will learn about all the new features in Sonar 9 as well as enhancements to existing features that may affect their current production workflow.