I'm currently trying to bend a kid's toy keyboard, found in a charity shop but from the badge, it's originally from the Early Learning Centre. I've found a couple of cool pitch mods and something that sounds a bit like it's altering the pulse width, which can make some great noises!
On occasion, I manage to get one of those 'stream of glitchiness' chance sequences, but I'm having trouble getting it to do this consistently, and I've been trying things out all evening!
At the moment, I have one test lead connected to a resistor on the timer circuit, and sometimes the keyboard will go haywire in just the right way when I tap the other end on part of the control board that has all the keyboard controls on it. Most of the time though, it'll crash the circuit. I've tried using variable resistors to lower the current through the test lead to see how that affects it, but this just alters the sound a little, or crashes it.
On occasion, it'll go haywire just when I touch the same side of the timer resistor without anything on the other end of the lead, but this is quite rare. Very confusing....
Are there any tips for helping find and nail these chance triggers?