A year ago I bought this Bontempi keyboard with the intend of circuit bending it and after some messing around with a variable resistor attached to some cables, I found some interesting patch points, they mostly mess with the audio signal (overdriving it) and its filters, also I added a pot to mix some noises coming from the rhythms to the whole thing. Finally, i found a point that produced a square wave variable LFO muting and unmuting the sound.

This is a video I've been waiting to do since then but I hadn't had the time.

The keyboard is a Bontempi Master HB 424. Then, the audio is sent to a Zoom MS70CDR for limiter - filter - tape delay - particle reverb.

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