I play and perform with the autoharp. In particular, I play the diatonic autoharp — 37 strings tuned to a particular 7-note scale in 3 octaves. My ‘harps have electric pickups (magnetic) that plug in just like electric guitars do. I am currently experimenting with one of your “Pitch Fork” pedals to act as a ‘capo’ for my autoharp — changing the key of my instrument — key of D going in and varying the key out. I am listening to the electric output using a set of earphones and the pedal seems to work, except that I am hearing too much of the original key through the air. Can the Pitch Fork algorithm deal with multiple strings simultaneously (i.e., a chord with as many as 8 strings sounding at once)? It would be great if this would work, as it would allow gigging/tuning only one instrument while allowing key changing to benefit a singer. I know a luthier who could build a solid-body autoharp (sort of the autoharp ‘Fender’ equivalent) … is that worth pursuing?

Note: I am a staff writer for “Autoharp Quarterly” magazine. I would propose writing an article about the Pitch Fork if I can make it work successfully.

I look forward to hearing from you soon.