Israeli song chord sheets come in a handful of inconsistent formats, often with Hebrew lyrics and chords in a mixed-direction mess. Caspian auto-detects the format, normalizes chord order for RTL, and runs the progression through an analysis engine.
The engine does enharmonic-aware key detection, roman numerals with modal context, secondary dominants, chords borrowed from parallel modes, three interpretations of diminished chords with confidence scores, deceptive resolutions, and bass-line motion.
On the front end: a chord sheet view with proportional bars, a lyrics-first editor where you click to place chords, a fretboard explorer, transpose, and practice mode with chord playback. Bring your own key and a model writes the narrative analysis.