Chord Distribution Analysis

Chord SymbolCountFrequency
Fmaj7516.7%
Gm7516.7%
G7#11413.3%
Gb7#1126.7%
F#maj726.7%
B726.7%
F#m726.7%
D726.7%

Key Patterns Detected

PatternFunctionFrequency
F#maj7 -> B7Setup (Major Key)1
B7 -> F#m7Resolution (Minor)1
D7 -> Gm7Resolution (Minor)1
Am7 -> D7b5b9Setup (Major Key)1
D7b5b9 -> Gm7Resolution (Minor)1
Gm7 -> C7b5b9Setup (Major Key)1
C7b5b9 -> Fmaj7Resolution (Major)1

Harmonic Highlights

  • The A section features a prominent Imaj7 to II7 (G7#11) movement, utilizing the Lydian Dominant sound before a subV7 (Gb7#11) turnaround to the tonic.
  • The bridge executes rapid chromatic modulations via sequential II-V patterns, shifting through distantly related tonal centers including Gb Major, G Minor, and Eb Major.
  • Extensive use of tritone substitutions and secondary dominants creates the characteristic “Bossa Nova” tension-resolution cycle without standard diatonic constraints.

Improvisation Focus Lydian Dominant scale (specifically for the II7 and subV7 chords).

Difficulty Rating 4/5. While the A section is harmonically stable, the bridge requires advanced navigation of rapid-fire key changes and non-diatonic sequences.