Local musician and student kneale (interesting website here) has built this device from junk pieces. The remit, as part of a final year uni project was to build an acoustic instrument that would play a scale and be testable. The result is the bass/harp made from a broken security pole and a tin plant pot (Tuned to a Bb major scale starting at Bb1 – Bb because that was the resonant frequency of the plant pot.)
He also knocked up a piezo pickup and passive Big muff tone control quickly at the last minute to try and gain some extra credit. By his own admission, it sounds “crap”, but you can listen to the acoustic sound samples and electric sound samples and decide for yourself.