Talk to your track
Skip the full rewrite.
Land the song you already have.
StemSense doesn't write you a song from a prompt. Upload a track you're already working on, talk about any section out loud, and get ideas that actually fit your key, register, and feel.
Tighten the pocket — bass locked to the kick
How it works
01 · Understand
See your whole song at once
Upload a track and StemSense separates it into four stems — vocals, drums, bass, and other — then maps key, tempo, sections, chords, and note events across every layer.
02 · Work the section
Talk about the exact part that matters
Draw a region on any stem and ask. The agent answers from measurements taken off your actual audio — onset counts, register, harmony, rhythm — never from generic music theory.
03 · Stay in control
Get options that fit — not output
Every idea is scored against your track’s key, register, rhythm, and harmony before you ever see it. Each option ships as playable audio, real notation, and a MIDI file for your DAW.
Every idea is checked against your track before you hear it
StemSense measures first, then generates — and only surfaces what survives.
Grounded
Deterministic measurements run before any model call. The agent states facts, not guesses.
Verified
A two-model firewall reads the numbers, then speaks — so claims about your track can’t be invented.
Filtered
Every generated option is scored and judged. You only hear the ones that fit.
Watch
A real session, start to finish
Upload, stem separation, a spoken question about a loose bass line, and three tightened rhythm options dropped straight into a DAW.
Engineering
How it was built
The stem-separation pipeline, the real-time voice agent, and the constraint system that keeps generated ideas honest.