The only DJ tool that learns you.

Describe the set you want — type it or say it out loud. Click the mic and tell Oto what you're hearing in your head: "3am basement, dark and hypnotic. Build slowly — don't peak until I say so." Oto parses your prompt into a set arc with energy zones, matches tracks, and starts auto-mixing with dual-deck crossfades. Review the plan first — adjust set length, opening BPM, energy arc, and key zone before committing. BPM-synced transitions with bass swaps over 8 bars. Steer it live: Darker, More energy, Hold here, Peak now, Bring it down — or say anything custom. The arc re-routes in real time. Skip triggers a crossfade, not a hard cut. Take control at any moment for full manual DJ mode. 40 demo tracks across 10 genres ready to go — or connect Spotify to seed your own library.

Not what tracks you play. How you play them. Style DNA is a living portrait of your mixing identity, built from your session history and updated after every mix. Dominant technique, transition speed, energy arc tendency, BPM range, harmonic preference, mood grid home territory. It surfaces patterns you didn't know you had. Tracks how your style shifts over time. The longer you use Oto, the more precisely it knows you.

A safety net that sounds like you, not like a generic fallback. Ghost draws from everything Style DNA has learned — your specific transition timing, your EQ habits, your phrasing — and deploys it on demand. Hold the Ghost button and it executes a transition the way you would have. Take back manual control at any point with a clean handoff. Ghost Mode only becomes fully itself after enough sessions to have something real to draw from. That's not a limitation. That's the design.

Your entire library mapped to a 2D emotional space. Energy on one axis, mood on the other. Each track is positioned by analyzing 11 audio features including spectral centroid, harmonic tension, and tempo feel — not tags, not metadata, the audio itself. Drag a selector around the grid to browse by feeling, not filename. Your session trail shows where the night has been. A look-ahead layer flags jarring contrasts before you commit. Navigate the way you actually think about music.

Split any track into four stems in real time using STFT spectral masking: bass, vocals, drums, melody. Mute the vocals. Solo the drums. Adjust each stem independently without affecting the others. Or drag the vocals from Deck A onto Deck B's instrumental for an instant mashup that doesn't exist on record. No external processing, no upload, no wait.

Go live and broadcast to listeners via WebRTC. Or start a B2B session: two DJs, each controlling one deck, synced in real time across devices and time zones. Open practice rooms let others watch your mixer state live and leave timestamped annotations that appear in your post-session review. A mentor can watch exactly what you're doing and tell you, precisely, what to work on.

Eight full-screen audio-reactive shader modes: Rings, Particles, Fluid, Fractal, Tunnel, Terrain, Galaxy, Kaleidoscope. Post-processing with bloom, chromatic aberration, and film grain. Smooth envelope-following audio reactivity. Save and share custom presets.