Rhythm Studio · Composition Lab 0.9 · Musical Styles

A separate musical test bench for Classical/Tonal, Jazz, Funk and Pop. Each style has its own chord plans, melodic approach and bass groove. Compare against the original Version 0.3 using the same permitted pitches and rhythm. Rate notes directly on the score.

Your live Rhythm Studio is untouched. This is an independent prototype, without logins or database connections. Version 3.7.9 remains the recovery version. This stage tests a single concert-pitch treble-clef melody with 4- or 8-bar tonal harmony.

1. Compose and compare

The same seed and settings reproduce both versions

2. Examine the musical results

Rate the notes on each score. Tap a square above a note to cycle through blank → ✓ → ? → ✕ → blank. Your marks stay with this exercise and appear in screenshots.

✓ Good? Not the best choice✕ Wrong
Harmonic bank + melodic review V0.8
Earlier Composition Lab V0.3 comparison

Both scores share the same key, available notes, note durations and seed. The selected style changes harmony and melodic writing. Jazz swing alters the playback timing of written quavers; both scores are notated evenly. Versions use different quality scoring rubrics, so numerical points are not directly comparable. Chord symbols and treble-clef notation are provided for listening and evaluation. Automatic quality scores are diagnostics, not proof of artistic quality.

How the reference framework informs this version

The uploaded Trinity flute, oboe, clarinet and saxophone scores informed the phrase and difficulty criteria. Tonal mode is preserved from V0.8. Genre experiments have their own original templates: jazz guide tones and seventh chords, funk groove-based harmony, pop chord loops and hooks. V0.7-style review then makes only cautious individual note corrections. It preserves good passing and neighbour notes and keeps the closing bar intact. The templates use established harmony and voice-leading principles, not copied melodies. Some combinations of restricted available notes require tonic substitutions. The scores are single-line examples, so chord functions and inversions are our compositional design rules, not extracted harmonies.

Read the musical reference framework (PDF). This prototype fixes the metre at 4/4 and does not yet implement full grade or instrument-transposition profiles.

4. Keep a reproducible record

The test record includes the seed, style, selected notes, rhythm, new and Version 0.3 melodies, chord progressions and automatic audit. Your per-note ✓ / ? / ✕ ratings and comments can also be exported. Nothing is sent to a server.