除錯
Chord Progression & Song Analyzer
This skill should be used when the user asks to "analyze this progression", "analyze these chords", "what key is this in", "what function does this chord have", "analyze my song", "what's the Roman numeral for", "explain this chord sequence", "break down this progression", "harmonic analysis of", or provides a chord sequence like "C Am F G" for analysis. Returns songwriter-friendly analysis with chord roles, voice leading, and Nine Harmonic Cells classification. Theory terms provided optionally in [Theory] tags.