Space Drum (from today's Patreon feed)

Seems you can simplify it quite a bit by 1) using a mikrokosmos for the input, 2) dropping the modulation bits in the upper right corner (that’s from the super space drum), and 3) using a dual supply, instead of the power supply bits. What’s left is two LM13700s and one LM358 (½LM324, or you could use a TL072 etc).

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