Tonemap was initially built for mixing and mastering engineers to help find commercial reference tracks that actually sound like their unmastered mix.

You upload a track, the app listens for loudness, tone, dynamics, tempo, and stereo width, then returns a ranked shortlist of released songs in a similar sonic ballpark. You can save keepers to a project and reopen past searches from history.

How it works:

Upload a mix — analysis runs in the browser
The app searches a large catalog of song “fingerprints” for close matches
Results are filtered by genre and checked against iTunes for real metadata + 30s previews
Matches are re-ranked by how well they line up with your mix’s sound

Next.js / React app with Clerk auth and Stripe credits; Neon for projects & history; Cloudflare R2 for audio/catalog storage; Essentia for audio analysis; a small Python worker for the ML similarity search; iTunes for previews.