Durations greater than 4 quarter notes not supported about midiwriterjs HOT 5 CLOSED

Hi @mitchkm,

Thanks for your message. Here are a couple solutions for achieving durations longer than whole:

Passing an array of note durations will give you a duration equal to the sum of those durations. Here's how you could get a dotted whole note:

const note = new MidiWriter.NoteEvent({pitch:['C4'], duration: ['1',  '2']});

You can use the tick based duration option to achieve notes longer than whole. The library is setup to use 128 ticks per beat. So in 4/4 that's 512 ticks per whole note. Something like this would give you a dotted whole note:

const note = new MidiWriter.NoteEvent({pitch:['C4'], duration: 'T768'});

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Thank you for showing me the ways to achieve my goal. But I will say for it to make the most sense in music theory it would be nice to provide a numeric quantity of a quarter note perhaps. ie. 10 quarter notes. I guess I can make an char. array of X quarter notes('4') but it feels a little less intuitive. Especially if arrays get changed to providing the duration for a multitude of pitches also provided in an array.

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Hi @mitchkm,

Thanks, could you post an example syntax that you would prefer?

-Garrett

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Following the way you specify ticks, perhaps:

const note = new MidiWriter.NoteEvent({pitch:['C4'], duration: 'Q10'});

Meaning a duration of 10 quarter notes

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Hi @mitchkm,

I can see your logic with this, but I don't think it's worth implementing this way. It introduces a new prefix Q, and presumably every prefix for all other note types; E for eighth, S for sixteenth, etc. which can get out of hand quickly and not particularly intuitive.

In it's current implementation, using an array of durations to be summed seems much more friendly and flexible from a programmatic standpoint in my opinion. For instance, how would you create a duration of two whole notes and an eighth?

For your case, creating an array of ten "4" is fairly trivial:

const note = new MidiWriter.NoteEvent({pitch:['C4'], duration: new Array(10).fill('4')});

Appreciate your input.

-Garrett

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