SynthDef("task_efef68ae-1aef-4dc3-9bc3-274765c62cb1", {
      arg out=0, gate=1, freq=220, amp=0.3, tempo=1.0;
      var env, warmPad, vocalSim, tapeSat, analogFilt, wobble, pan, sig, time, dust;
      
      // Long evolving envelope
      env = EnvGen.kr(Env([0, 0.7, 1, 0.8, 0], [8, 25, 30, 15] / tempo, [2, -2, 3, -4]), gate, doneAction: 2);
      time = SinOsc.kr(0.02 * tempo);
      
      // Warm analog-style pad
      warmPad = Mix.ar([
          Saw.ar(freq * [0.99, 1.01, 1.503]) * 0.4,
          Pulse.ar(freq * [0.5, 0.752], LFNoise1.kr(0.3).range(0.3, 0.7)) * 0.3
      ]);
      
      // Simulated children's vocal formants
      vocalSim = Formant.ar(
          freq * [0.7, 0.9] + LFNoise1.kr(2).range(-5, 5),
          [800, 1200] + (time * 200),
          [100, 150],
          LFNoise1.kr(0.1).range(0.05, 0.15)
      );
      
      // Analog filter with slow modulation
      wobble = SinOsc.kr([0.07, 0.05] * tempo).range(0.3, 1.2);
      analogFilt = RLPF.ar(warmPad + vocalSim, 
          (400 + (time * 600) + LFNoise1.kr(0.3).range(0, 300)) * wobble, 
          0.4 + LFNoise1.kr(0.2).range(0, 0.3)
      );
      
      // Tape saturation simulation
      tapeSat = (analogFilt * 2.5).tanh * 0.6;
      
      // Nostalgic dust and crackle
      dust = Dust.ar([0.5, 0.7] * tempo) * Decay.ar(Impulse.ar(0), 0.05) * 0.02;
      
      // Slow stereo movement
      pan = SinOsc.kr(0.03 * tempo);
      sig = Balance2.ar(tapeSat[0] + dust[0], tapeSat[1] + dust[1], pan);
      
      // Final processing
      sig = HPF.ar(sig, 30);
      sig = Compander.ar(sig, sig, 0.3, 1, 0.3, 0.01, 0.3);
      sig = LeakDC.ar(sig * amp * env).clip(-0.95, 0.95);
      
      Out.ar(out, sig);
  });