DIY MIDI Organ - first tryout

First organ module 16 tones, another 16 tones will follow. Solenoids: hand wound, 2200 turns, ~ at 12V, a nail with permanent magnets on the top and bottom, rubber valve cut from a broken bike tire, the green LEDs are fueled by the inductive kickback :) Pipes: PVC tubes 20mm diameter, lowest note: B (plugged) Wind chest: plastic food storage box Wind supply: still an issue, at the moment a 12V air pump Electronics: MIDI signal to Arduino to Shift Registers to MOSFETs