Check the listing for details. ElectroHarmonix MEL9 Tape Replay Machine Guitar Effects Pedal. Condition: New. Listed at 259.50 USD. The polyphonic MEL9 tape relay machine guitar effects pedal uses the same extraordinary technology as the B9, C9 and KEY9 to transform your axe and resurrect the sound of vintage tape-based keyboards. It pays homage to nine of the coolest Mellotron sounds: Orchestra, Cello, Strings, Flute, Clarinet, Saxophone, Brass, Low Choir and High Choir. It works on guitar without modifications, special pickups or MIDI implementation, and tracks bends, slides and even whammy dive bombs.You can also put it to work with your bass down to the open A string as well as keyboards. The MEL9 includes independent Effect and Dry volume controls so you can create the perfect mix at the Effects output with a Dry Output jack to output your input signal at unity gain.