ISBN 9781619113664. Killer Technique: Upright Bass is designed to help open up your technique. It encourages an approach that will make you think and work hard in the practice room, but relax while performing. The content is geared toward an improvisatory approach. The lessons included are designed for pizzicato playing, but work just as well with arco. You will find exercises that present challenges to each hand. Above all, this book stresses that technique is a means to an end: creating beautiful music.