How to use it
var Tick = requrie("bpm-tick");
var b = new Tick(128);
b.register('beat', function (x) { console.log("bam"); });
b.register('bar' , function (x) { console.log("badam"); });
b.play();
It uses Date so it shouldn't drift (aka. it won't fall out of tempo). It's not
guaranteed to be 100% precise on the note though.
Available callbacks
You can register any of these:
Word key Power key Number (res. available)
sub 1/64 0
div 1/16 1
beat 1/4 2
bar 1 3
word 4 4
verse 16 5
song 64 6
Registering beat, 1/4, and 2 are exaclty the same thing.
Registration overwrites.
Resolution
By default, resolution 2 is used. You can set your own resolution with
var b = beat(128 [, resolution]);
where resolution is an integer from 0 to 6.
At resolution 2, only callbacks for beat (1/4) and longer are called. To get
sub (1/64) resolutions to be be called, you have to use resolution 0. (See
table above)
Other stuff
b.on is an alias for b.register.
b.devlog = true will log numbers.