What is a Setlist? Setlists are your customized groupings of presets allowing you quick switching— ideal for gigs, practice and lessons. Click here to see how to create and use Setlists. Related articles How do I use Setlists in the Tone app? How do I select presets in the Tone app? What is a signal chain? How do I update the firmware on a Mustang GT amplifier? How do I duplicate a preset in the Tone app?