SynthDef(\padoo,
	{
		|gate=0|
		var sig, env, freq;
		freq = \freq.kr(120);
		// three notes. root note, 7th, octave. vibrato
		sig = Saw.ar(
			[freq, (freq.cpsmidi + 7).midicps, (freq.cpsmidi + 12).midicps] +
			SinOsc.ar(\vibrato.kr(6)).linlin(-1, 1, \vibratoMin.kr(-0.5), \vibratoMax.kr(0.5))
		);
		// detuning through slight pitch shifting
		sig = 6.collect({|item| PitchShift.ar(sig, 0.05, Rand(0.98, 1.02))}).sum / 6;
		sig = Splay.ar(sig, 0.2);

		// env = Env.perc(\attack.kr(1), \decay.kr(3)).ar(Done.freeSelf);
		env = EnvGen.ar(Env.asr(\attack.kr(1), \decay.kr(3), \release.kr(1)), gate, doneAction: Done.freeSelf);
		sig = sig * env;
		sig = RLPF.ar(sig, Env([500, 700, \ff.kr(1500)], [0.5, 1, 0.5]).ar, 0.9);
		sig = sig * \amp.kr(0.2);
		sig = Limiter.ar(sig);
		Out.ar(\out.kr(0), sig);
	}
).add;