ELKA PM-13 MIDI Bass Pedal

via this auction

"Vintage Elka PM 13 MIDI Bass Pedal Synthesizer. Pedalboard Connects to any MIDI Generator (IE Keyboard) and Play the Bass by Foot Pedals.
Transpose and Hold Functions are Incorporated on the Pedal.
The White Keys are from Left to Right
the MIDI Channels 1 to 7, the Black Keys are the Octave Range (C# = C1-C2, D# = C2-C3 ...)."


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