Book excerpt: Welcome to the PO-12 Rhythm - Master Class! Have you just got your hands on one of these beautiful machines and don’t know where to start? Do you want to learn how to get more creative with it and create actual songs? Or do you want to become a Pocket Operator master? Then this book is for you. Some of the topics that this book will cover is: Simple operation Tweaking a sound Parameter locks Making melodies with the PO-12 Making a song Backing up patterns Recording live Pattern chaining How to use the step multiplier Effects How to sync the PO-12 with external gear Explanation of parameters So what are you waiting for? Time to master your Pocket Operator!