Working on a song that is technically in F#, but the original artist does it Half Down tuning, plays it in G. It's difficult for me to sing it in G, not bad at all in F#. In G, there is a bunch of cool guitar work that can be done, like the G-C bounce (G, Cadd9), and open string stuff, in E (capo 2), or just playing it in F#, that stuff can't be done. I asked a friend how he's doing it, and he has a Digitech "Drop" pedal! Kicks it on and plays it in G, while it's actually in F#. Like having a half down tuned guitar, at the press of a foot switch! So I says to myself, "Gotta get one of those!" $179 new, 125 used. A little rich for my blood right now. Is there a less expensive alternative, that is worth the investment? I've googeled around and it's quite confusing. Polyphonic, chorus, pitch shift, momentary latch, octave, harmonizer, etc. I just want to go half down and not break the bank or carry an extra guitar for one song. And the pedal needs to work on an acoustic, as well as an electric. Any suggestions would be greatly appreciated. Edit: The Mooer Pitch Box is interesting, price is right, but does it do what I'm looking for?