Once or asap in Strudel

Strudel
1

Hi everyone, is there a Strudel function equivalent to Tidal Cycles' "once" or "asap" that allows instructions to be executed just once?

1 Like
2

A very late reply! So far there isn’t, but now that the strudel ‘warm’ beta version (https://warm.strudel.cc) has tidal-style block-based evaluation (turn it on in the settings to try it out), it would be easier to implement I think.. So hopefully soon.

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3

what I see myself doing from time to time when I want to do some intro (not livecoding, but arrangements)

$: s("ballwhistle").when(time.gte(1),x=>x.mask(0))
$: s("bd sd bd <oh hh>").when(time.lt(1),x=>x.mask(0)).late(1)

The late makes sure your non-intro patterns (re)start at time = 1. You don’t need that if you work with pickRestart

4

Switch angel’s prebake has the following function in it that might be what you’re looking for:

/* Plays a sound once (when the REPL is updated) but locked to a provided grid/quantize

So doing

s("downlifter").oneshot(4)

will play it, but only at the next 4-divisible cycle (t = 0, 4, 8, etc)
Useful for locking it into relevant parts of the arrangement

*/
register('oneshot', (grid, pat) => {
const t = getTime();
const qt = Math.ceil(t / grid) * grid;
return pat.filterWhen((t) => t >= qt && t < qt + 1);
});
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5

is the general idea of “once”, that it always plays the first event, or is it based on the time, that it uses the next event at the current time?