Chord Distribution Analysis

Chord SymbolCountFrequency
A7715.2%
D7613.0%
E7#948.7%
Am36.5%
F#m7b536.5%
F7#1136.5%
Am7/G24.3%
Gmaj724.3%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)1
D7 -> Gmaj7Resolution (Major)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abm7Resolution (Minor)1
Abm7 -> Db7Setup (Major Key)1

Harmonic Highlights

  • The opening sequence employs a descending line cliché (A-G-F#-F), moving from the tonic through F#m7b5 to F7#11.
  • F7#11 functions as a tritone substitution for B7 (subV/V), providing a smooth chromatic resolution toward the E7#9 dominant.
  • The progression shifts from a modal minor feel to a blues-inflected circle of fifths (A7-D7-B7), utilizing secondary dominants to build momentum.

Improvisation Focus A Minor Blues scale combined with A Dorian to navigate the shifting tonal centers and altered extensions.

Difficulty Rating 3/5: While the groove is accessible, the non-diatonic tritone substitutions and secondary dominants require precise chord-tone targeting.