Structure you can see. Harmony you can hear.
A procedural music engine that composes original songs from music theory, with the data and reasoning behind every note.
PRESS PLAYSEE A COMPOSITION
Press Play
Three pieces SHE composed, each with everything it returns.
Audio
Audio
WAV · full song + 5 tracks
MIDI
MIDI
Note-by-note and fully editable, one track per instrument.
Metadata
Metadata
- Profile:
- Electronic
- Key:
- D
- Mode:
- Aeolian
- Tempo:
- 137 BPM
- Meter:
- 4/4
- Progression:
- vi – IV – I – V, realized as VI – iv – i – v
- Instrumentation:
- Square lead, sawtooth chords, synth bass, polysynth pad, power kit
- Sections:
- Intro, verse, chorus, verse 2, bridge, outro
Produced while SHE builds it, not labeled afterward.
Decision Tree
Decision Tree
- Mode:
- Aeolian, chosen from the modes electronic allows
- Progression:
- vi – IV – I – V, chosen from the progressions that fit electronic in aeolian
- Bass, verse:
- Sub-punch pattern, chosen for electronic and a driving mood
- Pad, bridge:
- Marcato half-notes, chosen for electronic and a driving, dreamy mood
- Replay:
- Each choice is logged as it is made, so the piece comes back note for note
Every musical decision SHE made. Replay the ID to rebuild it exactly.
WHO BUILDS WITH SHE
Every team that builds with music hits the same wall. Licensed audio is scarce and costly, and its labels are estimates. SHE composes exactly what is missing, with every label known in advance.Every team that builds with music hits the same wall. Licensed audio is scarce and costly, labels on real recordings are estimates that annotators disagree on, and the rare cases, an unusual mode at a specific tempo, are the hardest to find at all. SHE composes exactly what is missing, with every label known in advance.
Music Technology
Use SHE as a ground-truth data engine: symbolic music data at any scale, every song carrying its exact notes and every choice with its reason.Use SHE as a ground-truth data engine designed for training: symbolic music data at any scale with rich metadata, every song carrying its exact notes, every choice, and every edit with its reason, for teams that need data to train models and test audio analysis.
Gaming
Use SHE as an on-demand score engine for adaptive music: original music in any style, in separate parts a game can build its own music from.
Enterprise & Background Audio
Use SHE as a live music source for infinite playlists: original background music of any length for retail, broadcast, and on hold, composed as it plays.
Music Education
Use SHE as a live theory engine to demonstrate modes, harmonic function, and song form, with every chord labeled as it sounds and the reason for every choice on record.
HOW IT COMPOSES
From Theory to Audio
Four layers, theory to finished piece. Every note traces to music theory older than the computer.
Data in
- Music profile
- Dark Electronic
- Genre
- Electronic
- Key
- D minor
- Progression
- vi – IV – I – V
- Tempo
- 137 BPM
Logic derived
- Mode
- Aeolian
- Harmony
- B♭ – Gm – Dm – Am
- Form
- Intro, verse, chorus, bridge, chorus, outro · 100 bars
- Instrumentation
- Square lead, saw chords, synth bass, polysynth pad, power kit
- Patterns
- Sub-punch bass, ride-8ths drums, half-note melody
Music out
- Intro
- Verse
- Chorus
- Bridge
- Outro
Metadata out
- Description
- Every possibility, named
- Decisions
- Each choice, and why
- Parts
- Editable MIDI
- ID
- Rebuilds this piece
Theory
How music works, written as code.
Theory
How music works, written as code.
Eleven modes resolved to their own pitch classes, chords built by stacking thirds inside the mode, seventeen harmonic roles a chord can play, consonance and register, and a metric grid that knows beat strength and swing. Ten thousand lines of music theory, which every profile then shapes to its own style.
Library
What tradition adds: progressions, rhythms, instruments, moods, and genre profiles.
Library
What tradition adds: progressions, rhythms, instruments, moods, and genre profiles.
107 progressions written as harmonic roles so each one realizes differently in every mode, 158 rhythm patterns with the parts they may play, 129 instruments with their playable ranges, 28 moods, 80 genre profiles, and the hand-authored weights that tie them to each style.
Orchestration
Where the music takes shape, one decision setting the ground for the next.
Orchestration
Where the music takes shape, one decision setting the ground for the next.
Section and phrase planning, the harmony realized in the chosen mode, then five composers, one each for melody, bass, chords, pad, and drums, and refinement passes that resolve clashes, add approach tones, and place rests so the song can breathe.
Export
Putting it together and handing it off: audio, MIDI, description, record, report.
Export
Putting it together and handing it off: audio, MIDI, description, record, report.
The audio, the editable arrangement (MIDI, the note-by-note instruction layer), the description, the decision record, and the quality report, with the engine version and hashes that let the piece replay.
LIVE OUTPUT
NEWLive Stream
SHE can also stream: an infinite playlist of original songs, no two the same, for retail, games, and broadcast backgrounds that need music that never stops.