Converts monophonic MIDI note on/off to a control rate gate.
Like an analog monophonic synth, this does not release until the last key is released.( Instr(\monosynth,{ arg gate=0.0,freq=440.0,ffreq=500,rq=0.1,width=0.3; var amp; amp = Latch.kr(gate,gate); RLPF.ar( Pulse.ar(freq,width), ffreq, rq) * EnvGen.kr(Env.adsr,gate,amp) }); Patch(\monosynth,[ MIDIGatePlayer.new, MIDIFreqPlayer.new ]).gui )