Jev Music Playground
A music playground that turns a chosen style into sheet music, playback and MIDI.
Added to Jevfast
How it uses Jev
Jev selects bounded labels for musical form, key, meter, style palette, tempo, dynamics, and per-bar phrase contours. Application code expands those labels into chords and notes, then engraves, plays, and exports the composition as MIDI.
What Jev decides
Choose the phrase layoutExample answers · not a recorded Jev response · Source ↗
Question 1 · form
YOUR APP
INSTRUCTION
How would the requested style most plausibly lay out the phrases of a short piece?
STATE
Plan a short solo-keyboard piece in the requested style; the state contains the style name and task instruction.
JEV · CHOICE
- period
- sentence
- arch
- chain
App workflow
- Describe a musical plan
The app gathers the selected style and composition settings for a request.
- Choose plan labels
Jev selects among bounded musical labels, including per-slot harmony phrases and per-bar contours.
- Realize the composition
Application code expands the plan into chords and notes, then renders notation and playback.
- Export MIDI
The generated composition can be downloaded as a MIDI file.
Why it is interesting
The separation between musical planning and note generation makes the model contribution inspectable: style tables and harmony books provide the vocabulary, while deterministic code realizes it.