Maestro Rhythm King MRK-4 Guitars My only disappointment is that

My only disappointment is that it doesn't model the multi-head patterns

but an improvement for the Hammond player

Overall it presents very well for its age

but is in really good order for a unit that's around 30 years old and has had three knobs/caps replaced (photos to follow)

a million points if you can identify all the gear that’s running into it

Maestro Rhythm King MRK-4 Guitars My only disappointment is thatUncommon beatbox which features the superb and unique modulation section which allows you to groove an external signal (e. g. guitar, synth etc) using the on board rhythms. This is very effective and a great creative tool.