Making something happen IF something else does something

Questions and Answers
1

Hi,

Not sure if this is easy to do in Tidal or not as i've only just started learning it, but if i wanted say an event to fire only IF another condition has been met, how would i go about this?

e.g play this hihat pattern only when a random number choice is below 30... or something

thanks in advance :slight_smile:
Chris

2

I’m away from where I could test this, but you should be able to achieve that with something like:

mask ((< 30) <$> irand 100) "hh*16"

3

Noting, of course, that there may be a more dedicated function which streamlines this further.

4

thanks - its not quite doing what I hoped but it is cool (even though I don't know what <$> means...)

I was thinking more like the whole pattern will play or not play, at the moment only parts of the pattern are playing, not the whole thing.

5

You can replace that irand 100 pattern with whatever pattern you like. So if you want to have it randomly start or stop on a per cycle basis, you could do that. Or a four-cycle basis, or whatever you like. Or in combination with some external control. It really all depends on what exactly you are trying to achieve.

As for <$>, that’s the infix notation for the function called fmap. You can think of it as allowing you to apply a function to the values within a structure of some kind. In this case, we’re using it to apply a comparison function of (< 30) to each of the events within the pattern irand 100.

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6

You might be looking for fix

The example in the documentation goes like this

d1 $ slow 2 $ fix (# crush 3) (n "[1,4]") $ n "0 1 2 3 4 5 6" # sound "arpy"

I like doing things like this

d1
  $ fix (echo 16 0.125 (slow 4.3 $ saw)) (n "[1,3]")
  $ n (irand 8) >| s "arpy*8"
  # octave 4
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