Rests and Drum Triggers

Can I kick it?

Here’s a kick drum

fn kick() = {
  let sweep = 50 + 150 * perc(0.001, 0.05)
  let click = noise() * perc(0.001, 0.006)
  sin(sweep) * perc(0.002, 0.4) * 0.9 + click * 0.1
}

It’s a kick with no pitched component, no pitched input, so how do we trigger it?

play([d2;q, f, g, e2], kick)

This will still work. The pitch information is irrelevant and tossed away, simply acting to trigger the kick.

We can also use the trigger symbol \:

play([\, \, \, \], kick)

It works proportionally and with rhythmic values:

play([\;q, \, \, \;e, \], kick)

Cool, but now you the kick only on one and three. Introducing the rest symbol ```

play([\;q, `, \, `], kick)

Rests work like every other rhythm. Let’s put the kick on 1 and 4 making the rest 2 beats:

play([\;q, `;h, \;q], kick)

Cool, now how do you actually make two things happen at the same time? Like a kick and a hi-hat, maybe.

fn kick() = {
  let sweep = 50 + 150 * perc(0.001, 0.05)
  let click = noise() * perc(0.001, 0.006)
  sin(sweep) * perc(0.002, 0.4) * 0.9 + click * 0.1
}

fn hat() = noise() * perc(0.001, 0.025) * 0.25 >> highpass(7000, 0.7)


play([\;q, `, \, `], kick)
play([\;e, \, \, \, \, \, [\;s,\,\,\,\,\];t], hat)

Both plays will start together. Now I have a simple beat to mess with.