https://www.instructables.com/MesoTune-Magnetic-MIDI-Controller/
MesoTune - Magnetic MIDI Controller : 16 Steps (with Pictures) - Instructables
MesoTune - Magnetic MIDI Controller: Note: I want to give credit of this project to by Alex Bluhme. So please check it out here https://vimeo.com/171612791....
midi controllerwith picturesmagneticstepsinstructables