Tap Tempo in GEN - wait for 4 'tap' presses.

You could have the condition of the latch be accum -> [== 4] -> [change] -> [== 1] to open the latch for just the single sample of the 4th tap.

I'm not sure how your patch is actually computing the tempo though.

If you have 4 taps, then you probably want the average of the period between tap 1->2, tap 2->3, and tap 3->4. That means a) you need to measure the times between taps, b) add them up (and reset to zero when your accum resets to zero), and c) divide by 3.

First, I'd replace your [gtep 1] with a [>= 1], so your tap trigger is always 1.0. The amplitude of the tap doesn't matter does it?

Measuring time between taps you can use an [accum 1/samplerate @resetmode pre], which will count in seconds. Send the actual tap spike [>= 1] through a [history] into the accum input to reset after each tap.

Multiply the output of this the [>= 1] to get a single value when a tap occurs, and route this into another [accum] for the running total. (reset this accum the same way you did above, via [history] after the accum == 4)) Route that through a [/ 3] for the average.

That's maybe a good start. Tap tempo is actually quite a complicated thing to solve well though -- a simple method works OK, but a really robust tap tempo can be very tricky indeed. Have a look at delay locked loops if you feel like digging deeper.