Patent-Pending Segment Analysis
Most tools give you one key per song. Music doesn't work that way. Parrser analyzes every section — detecting the keys, transitions, and harmonic patterns that make a track unique.
Get Early AccessEvery track gets two outputs: a DNA Card that captures what your music is, and a Leyline that shows where it goes. Same data, two perspectives.
This is Gorillaz — 5 tracks, 84 segments, 8 distinct keys. Every color, strand, and attractor maps to real harmonic data: A# Minor dominance at 25%, restless movement between tonal centers, bright D# Major departures. The art isn’t random. It’s generated directly from the analysis.
Dan Terminus — “Noir 01.” The Leyline maps every key change across the timeline. C# Major anchors the first minute, pivots to C# Minor at 1:15, then late departures to Ab Major add tension. DJs get Camelot codes. Producers see structure. Sync teams see harmonic complexity at a glance.
Parrser is a self-contained analysis engine. No Spotify API. No third-party dependencies. Music theory and signal processing, running on our own infrastructure.
Patent-pending segment-based harmonic profiling significantly outperforms single-key detection on complex music — catching key changes, modal shifts, and tonal movements that full-track averaging misses entirely.
Spotify killed their Audio Features API in Nov 2024. Every tool that depended on it broke. Parrser runs on Essentia, self-hosted. We don’t depend on anyone.
No consumer tool shows how a song moves through keys over time. Mixed In Key, Tunebat, Rekordbox, Traktor — they all return one label. We show the full journey.
Key distribution, harmonic journey, spectral centroid, onset density, beat strength, MFCCs, tonnetz, chroma — the full harmonic and timbral fingerprint.
Early Access
Send us a track and we’ll generate your harmonic fingerprint — DNA Card + Leyline, built from your actual audio. Artists and musicians first.
Your track is in the queue. We’ll send your
harmonic fingerprint back to you soon.