Session slack_1771974253743159

February 24, 2026

Practice Journal

Hey Dylan. EMPI here — ready to synthesize. What are we making today?

// 1. Define SynthDefs and write to disk SynthDef(\kick, { |freq = 60, amp = 0.8| var env = EnvGen.ar(Env.perc(0.005, 0.2), doneAction: 2); var sig = SinOsc.ar(freq) * env * amp; sig = LPF.ar(sig, 400); Out.ar(0, sig ! 2); }).writeDefFile;

SynthDef(\hihat, { |amp = 0.3| var env = EnvGen.ar(Env.perc(0.001, 0.05), doneAction: 2); var sig = WhiteNoise.ar * env * amp; sig = HPF.ar(sig, 8000); sig = LPF.ar(sig, 12000); Out.ar(0, sig ! 2); }).writeDefFile;

SynthDef(\snare, { |amp = 0.4| var env = EnvGen.ar(Env.perc(0.005, 0.2), doneAction: 2); var sig = WhiteNoise.ar * env * amp; sig = BPF.ar(sig, 2000, 0.5); sig = LPF.ar(sig, 6000); Out.ar(0, sig ! 2); }).writeDefFile;

SynthDef(\synth, { |freq = 440, amp = 0.5| var env = EnvGen.ar(Env.adsr(0.01, 0.1, 0.3, 0.8), doneAction: 2); var sig = SinOsc.ar(freq) * env * amp; sig = LPF.ar(sig, 6000); Out.ar(0, sig ! 2); }).writeDefFile;

SynthDef(\tom, { |freq = 200, amp = 0.6| var env = EnvGen.ar(Env.perc(0.01, 0.3), doneAction: 2); var sig = SinOsc.ar(freq) * env * amp; sig = RLPF.ar(sig, 1000, 0.5); Out.ar(0, sig ! 2); }).writeDefFile;

// 2. Build Score with complementary balanced sounds Score([ // Kick pattern [0.0, [\s_new, \kick, 1001, 0, 0, \freq, 60, \amp, 0.8]], [0.5, [\s_new, \kick, 1002, 0, 0, \freq, 65, \amp, 0.7]], [1.0, [\s_new, \kick, 1003, 0, 0, \freq, 60, \amp, 0.8]], [1.5, [\s_new, \kick, 1004, 0, 0, \freq, 65, \amp, 0.7]], [2.0, [\s_new, \kick, 1005, 0, 0, \freq, 60, \amp, 0.8]], [2.5, [\s_new, \kick, 1006, 0, 0, \freq, 65, \amp, 0.7]], [3.0, [\s_new, \kick, 1007, 0, 0, \freq, 60, \amp, 0.8]], [3.5, [\s_new, \kick, 1008, 0, 0, \freq, 65, \amp, 0.7]],

// Hi hat pattern
[0.1, [\s_new, \hihat, 1009, 0, 0, \amp, 0.3]],
[0.3, [\s_new, \hihat, 1010, 0, 0, \amp, 0.25]],
[0.6, [\s_new, \hihat, 1011, 0, 0, \amp, 0.3]],
[0.8, [\s_new, \hihat, 1012, 0, 0, \amp, 0.25]],
[1.1, [\s_new, \hihat, 1013, 0, 0, \amp, 0.3]],
[1.3, [\s_new, \hihat, 1014, 0, 0, \amp, 0.25]],
[1.6, [\s_new, \hihat, 1015, 0, 0, \amp, 0.3]],
[1.8, [\s_new, \hihat, 1016, 0, 0, \amp, 0.25]],
[2.1, [\s_new, \hihat, 1017, 0, 0, \amp, 0.3]],
[2.3, [\s_new, \hihat, 1018, 0, 0, \amp, 0.25]],
[2.6, [\s_new, \hihat, 1019, 0, 0, \amp, 0.3]],
[2.8, [\s_new, \hihat, 1020, 0, 0, \amp, 0.25]],
[3.1, [\s_new, \hihat, 1021, 0, 0, \amp, 0.3]],
[3.3, [\s_new, \hihat, 1022, 0, 0, \amp, 0.25]],

// Snare pattern
[1.0, [\s_new, \snare, 1023, 0, 0, \amp, 0.4]],
[2.0, [\s_new, \snare, 1024, 0, 0, \amp, 0.4]],
[3.0, [\s_new, \snare, 1025, 0, 0, \amp, 0.4]],

// Synth melody
[0.0, [\s_new, \synth, 1026, 0, 0, \freq, 523.25, \amp, 0.5]], // C5
[0.5, [\s_new, \synth, 1027, 0, 0, \freq, 392.00, \amp, 0.4]], // G4
[1.0, [\s_new, \synth, 1028, 0, 0, \freq, 659.25, \amp, 0.5]], // E5
[1.5, [\s_new, \synth, 1029, 0, 0, \freq, 523.25, \amp, 0.4]], // C5
[2.0, [\s_new, \synth, 1030, 0, 0, \freq, 392.00, \amp, 0.5]], // G4
[2.5, [\s_new, \synth, 1031, 0, 0, \freq, 659.25, \amp, 0.4]], // E5
[3.0, [\s_new, \synth, 1032, 0, 0, \freq, 523.25, \amp, 0.5]], // C5

// Tom fills
[0.25, [\s_new, \tom, 1033, 0, 0, \freq, 150, \amp, 0.6]],
[0.75, [\s_new, \tom, 1034, 0, 0, \freq, 200, \amp, 0.5]],
[1.25, [\s_new, \tom, 1035, 0, 0, \freq, 150, \amp, 0.6]],
[1.75, [\s_new, \tom, 1036, 0, 0, \freq, 200, \amp, 0.5]],
[2.25, [\s_new, \tom, 1037, 0, 0, \freq, 150, \amp, 0.6]],
[2.75, [\s_new, \tom, 1038, 0, 0, \freq, 200, \amp, 0.5]],
[3.25, [\s_new, \tom, 1039, 0, 0, \freq, 150, \amp, 0.6]],

// Clean shutdown
[4.0, [\c_set, 0, 0]]

]).recordNRT( outputFilePath: “~/output.wav”.standardizePath, headerFormat: “WAV”, sampleFormat: “int16”, sampleRate: 44100, options: ServerOptions.new.numOutputBusChannels_(2), duration: 8, action: { 0.exit } );

You’re absolutely right — I misapplied the duration requirement. Let me create a proper 60-second piece with balanced complementary sounds.

Creating full 60-second piece with proper timeline coverage

// 2. Build Score with complementary balanced sounds Score([ // Kick pattern (every beat) [0.0, [\s_new, \kick, 1001, 0, 0, \freq, 60, \amp, 0.8]], [1.0, [\s_new, \kick, 1002, 0, 0, \freq, 65, \amp, 0.7]], [2.0, [\s_new, \kick, 1003, 0, 0, \freq, 60, \amp, 0.8]], [3.0, [\s_new, \kick, 1004, 0, 0, \freq, 65, \a…