s.boot;

SynthDef(\justasine, {| freq = 440, gate = 0, cutoff = 1000,amp=0.25|
    e = EnvGen.kr(Env.adsr(0.01,0.01,1,0.01),gate,doneAction:2);
    x = Pulse.ar(freq,0.5,e*amp);
    f = BLowPass4.ar(x,cutoff);
    o = Mix([f]);
    Out.ar(0,[o,o]);
}).send(s);


MIDIClient.init;

v = Voicer.new(12,\justasine, addAction:\addToHead);
k = MIDIClient.sources.collect {|port,i|
    VoicerMIDISocket.new(MIDIChannelIndex(port.postln,0),v);
};

f = \cutoff.asSpec;
// list of the symbols you can use for this is in ControlSpec:initClass

(
    c = CCResponder({ |src,chan,num,value| a.set( \cutoff, f.map( value/127 ) ) },
        nil, // any source
        nil, // any channel
        1, // CC number 80
        nil // any value
    )
)v

s.freeAll;