Strange Hohner Bass 3 synth customized into a multi-patch digital bass
based on Yamama YM2203. If you have any information then
kindly share it with us.
The images are in the following zip file:
(size 19 megs)
Update: Information received tells that this is a prototype Hohner Bass 4.
The Bass 4 never went into production so this may be the only one.