Jazz (original) · Tonality and rhythm guide

Major Jazz

The original C-major ProteinToMusic jazz mapping.

Scale / tuning

C major

Meter

4/4

Default tempo

140 BPM

About this profile

This is the original jazz decoder. It combines the protein-derived harmonic candidates with a swing rhythm section while keeping chord, bass, melody and percussion on separate MIDI roles.

The selected profile changes the audible scale, pulse, texture and ensemble. It does not change the protein-derived codon levels or structural-neighbour data.

Texture · jazz ensemble

How the parts interact

Independent chord, walking-bass, lead and percussion roles form the jazz arrangement.

Adaptive chord translation

The original renderer keeps the warehouse chord's chromatic root, third, fifth and optional seventh intervals.

The source chord is no longer reduced to its root and number of notes. Root, third, fifth and seventh remain separately traceable in the generated mapping metadata.

Realization

Swing comping with the original chord roles

Stable tones use the profile tuning. When a strict modal projection would erase a source colour, selected textures may state it briefly and resolve it into the target scale.

Scale and tuning

C major

Positions are measured in cents above the profile tonic. The diagram shows their placement inside one 1,200-cent octave.

200

400

500

700

900

1100

Rhythm pattern · Jazz swing

A four-beat jazz frame with the corrected ride/brush skip placement and backbeat emphasis on beats two and four.

Each row is one normalized metrical cycle. A DNA/RNA codon—or a species-aware reverse-translated protein residue—selects exactly one of these four density levels. Brighter, wider blocks mark longer events; the tooltip reports accent strength.

Codon level 1

1 event

Codon level 2

2 events

Codon level 3

3 events

Codon level 4

4 events

Percussion cycle

The profile uses a 1-bar percussion cycle. Percussion is on by default and can be changed on the generation page.

Ride Cymbal · 0%Acoustic Snare · 25%Ride Cymbal · 50%Acoustic Snare · 75%

Default ensemble and mixer

Chord

Acoustic Grand Piano

Default level 85 / 127

GM program 1. Timbre and level can be changed in the result mixer.

Bass

Acoustic Bass

Default level 126 / 127

GM program 33. Timbre and level can be changed in the result mixer.

Melody

Tenor Sax

Default level 80 / 127

GM program 67. Timbre and level can be changed in the result mixer.

Percussion

Jazz Ride Kit

Default level 110 / 127

Profile-specific channel-10 percussion pattern.

How the biological mapping is preserved

1 · Sequence

Codon level

Codon identity selects one of the four rhythm rows shown above.

2 · Structure

Spatial neighbours

PDB Cα neighbourhoods shape melodic density, timbre and alignment.

3 · Harmony

Retained chord roles

The scorer selects a source chord; its root, third, fifth and seventh are jointly projected instead of replaced by fixed offsets.

4 · Style

Adaptive realization

The profile applies tuning and turns the mapped chord into a roll, arpeggio, interlock, drone or layered sonority.

Rendering scope and limitations

The MIDI preserves the generated harmony, melody, bass and drum roles; playback quality depends on the installed SoundFont.

General MIDI provides a portable approximation. Registered SoundFonts may improve instrument identity, while downloadable MIDI and mapping metadata preserve the reproducible control data.