A KyserÂ® Quick-ChangeÂ® is expertly engineered and built to last. It is reliable and does just what it is designed to do â clearly raise the pitch of the guitar so you can play in a different key without retuning or changing fingering. Seasoned professionals and beginning players alike appreciate how the KyserÂ® Quick-ChangeÂ® helps them transpose their guitar in seconds, with only one hand. The beauty of the KyserÂ® Quick-ChangeÂ® is in its simplicity. We pioneered this design and although often imitated, a KyserÂ® is never equaled. There is no substitute for a KyserÂ® Quick-ChangeÂ®.