[sc-users] Re: a MIDIFunc that doesn't work

[Eli Fieldsteel <eli.fieldsteel@xxxxxxxxxx>]

Your syntax here is incorrect:

MIDIFunc.noteOn({|vel, num| if(num == 71){SinOsc.ar(440, 0, 0.5)}.play;});

Specifically, you close the parentheses your conditional "if" too soon.

Here, the syntax error is corrected:

MIDIFunc.noteOn({|vel, num| if(num == 71, {{SinOsc.ar(440, 0,
0.5)}.play})});

But IMO it is far clearer on multiple lines:

(
MIDIFunc.noteOn({
	|vel, num|
	if(
		num == 71,
		{
			{SinOsc.ar(440, 0, 0.5)}.play;
		}
	);
});
)

The following code will play a sine wave at a frequency corresponding to the
played MIDI note:

(
MIDIFunc.noteOn({
	|vel, num|
	{SinOsc.ar(num.midicps, 0, 0.2)}.play;
});
)

Still fairly crude though, because note off information is ignored, there
are no envelopes, etc.

Eli



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