its a midi instrument that helps its users understand music theory. chord relationships as on the circle of fifths are represented; visually using colours; physically using distance on the slider. jazzy and complex chord types are reduced to buttons that use an algorithm that figures out everything out for you, and gamifies it into poking the belly of a kitten. best of all, the chords selected can be played as simply as spinning a disk or as selectively as plucking strings of a guitar!
