Learn what the room hears.

Oto Labs teaches DJ craft and audio technology through listening. Each guide gives you a concept, a live instrument, and a direct way to hear the difference for yourself.

Start with phrasing

Most AI music research asks how machines can make music. We ask how machines can make musicians.

Recommended path

Start with timing and listening. Move through the shape and structure of a set. Finish with the systems that connect gestures to sound.

01 Phrasing, by earFeel beats become bars, phrases, and well-timed transitions.Timing · bars · transitions Start here 02 Signals, by earHear the seven ideas beneath every EQ, echo, and blend.Waveforms · filters · mixing Open lab 03 Keys, by earHear why some track pairs sing together while others fight.Harmony · Camelot wheel · key changes Open lab 04 The energy arcDraw the shape of a night and hear each layer follow it.Pacing · density · the peak Open lab 05 Stems, by earPull a finished mix apart and perform with its layers.Separation · artifacts · live remixing Open lab 06 Synthesis, by earBuild a playable instrument from four fundamental blocks.Oscillator · filter · envelope · LFO Open lab 07 MIDI, by earSee the messages that connect musical gestures to sound.Notes · velocity · control · sequencing Open lab

Built for ears, not exams.

Use headphones when you can. Every sound is generated live in your browser.