Harmony Explorer
Interactive encyclopedia of keys, chords and harmonic relationships.
Choose a key and degree. Circle navigates tonality, Grid compares tones, and Network shows evidenced relationships. Compose is for creating progressions.
What could come next?
Ideas from the working harmony and reference key. Tentative without the melody; no chords are added without confirmation.
Genre-aware harmonic continuations
Manouche · contextual phrase continuations
Curated continuations based on the current phrase ending and reference key. Melody is not checked; only the explicit Append button changes the working progression.
Bossa Nova / Samba · contextual phrase continuations
Genre-aware harmonic ideas, not rhythm accompaniment. Tentative without the melody; Append is the only way to change chords.
Manouche paths: I6 → ii7
Curated examples; verify against the melody.
Progression
Musical phrases
Automatic groups of complete chord occurrences; timing, voicings and order stay unchanged.
Manual phrases export as Editor V2 sections. Mid-bar boundaries create exact partial bars.
Phrase harmonic intelligence
Tentative chord-only interpretation without the melody; no key or chord changes automatically.
Manouche reharmonization · selected transitions
Try a catalog-approved passing chord or substitution at a matching transition. The original Grille is never edited and timing is preserved.
Reharmonization confirmed · working progression retained.
A/B comparison · original vs alternatives
Build two alternatives and audition them. The working progression stays unchanged until Apply selected.
Bar layout
Opens a new unsaved draft in Editor V2.
One saved version in this browser and origin only · nothing is stored on the server.
Check the ideas to add or replace. Name conflicts are skipped by default.
Guitar voicing paths
Compares up to 8 published EADGBE voicings per chord by estimated pitch movement and fret position; not a fingering or La Pompe suitability guarantee.
Harmony Explorer · Explore explains, Compose creates · Theoretical examples are not observed song transitions.