While goofing around with a retired coil-on-plug pack, @MLE_online and I tried driving it far faster than spec. Fast enough to generate musical tones.
Please enjoy this rendition of "Ode to Joy" from Beethoven's Symphony #9 performed by sparky danger organ.
This hideous hack proved the concept is possible. But making it play WELL (bring it in tune, for starters) will take a lot more work.
@Extelec this is in your wheelhouse I think