I have owned this Korg M1 Music Workstation for about 25 years. It has mostly been unused in that time, either in storage in its flight case or in my office with very little playing. The battery was replaced on the 18th August 2025 and the factory presets re-loaded by MIDI. It is working fine. The factory sequences and presets all work. Cosmetically the case is a bit scratched. It comes with flight case, mains connector, manual, and a mouse mat that summarises programming details. I am selling due to a house move and need the space.
eBay