Get values from midi keyboard

Questions and Answers
6

Since I helped someone out with this topic today, I would like to append something to this topic for the sake of completeness. It is also possible to send a list of notes to TidalCycles (e.g. to send whole chords). My SuperCollider code looks like this:

(
var on, off;
var osc;

osc = NetAddr.new("127.0.0.1", 6010);

~notes=[];

MIDIClient.init;
MIDIIn.connectAll;

on = MIDIFunc.noteOn({ |val, num, chan, src|
	~notes=~notes.add(num);
	~notes=~notes.sort({|a,b| a>b}).reverse;
	osc.sendMsg("/ctrl", "notes", format("%", ~notes-60));
});

off = MIDIFunc.noteOff({ |val, num, chan, src|
	~notes=~notes.takeThese({|x| x ==num});
	osc.sendMsg("/ctrl", "notes", format("%", ~notes-60));
});


if (~stopMidiToOsc != nil, {
	~stopMidiToOsc.value;
});

~stopMidiToOsc = {
	on.free;
	off.free;
};
)

In TidalCycles there is a (undocumented?) function cP, which accepts whole lists. So with the code above you could do something like this:

d1 $ s "superpiano" <| n (arp "converge" $ cP "notes")

So maybe this is useful for someone...

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