Block one thing from happening when two other things are happening

NAND logic will only go high when its inputs are low

You can mult gates for two or more event streams into a NAND circuit, and circuit will output a high signal except when two input gates happen to overlap. In this way, you can silence a third activity when two other activities are already happening coincidentally.

Example:

• patch copies of two distinct gate streams from two melodic sequences to a NAND circuit
• patch the output of the NAND circuit to control a VCA (or to the input of a separate AND circuit)
• patch a trigger rhythm destined for a percussion voice to the input of the VCA (or the other input on the separate AND circuit) and patch the output to the percussion voice

Result: the percussion will trigger normally whenever neither or one of two melodic sequences is playing a note, but will be silent when both sequences are playing notes simultaneously.

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