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Afro Blue in C
Afro Blue in C: Mongo Santamaria's Afro-Cuban jazz classic. Dorian and Harmonic Minor scales define the exotic, modal color of these sophisticated changes. Chords: Cm69 – G#7b9/Ab – G7b9/G – A# – G# – Cm – C#13 – Cm7.
Afro Blue in C
With no sharps or flats, C major is the theoretical home base on guitar. The open G, B, and high E strings all belong to the C major chord, creating natural sustain. C is a beginner-level key on guitar because the open B and high E strings ring within the scale, and every basic chord uses familiar open shapes. Beginners will find this key approachable since most chords use open voicings with minimal stretching.
Voice Leading
The bass line moves through C to G# (descending major third), G# to G (descending half step), G to A# (ascending minor third), A# to G# (descending whole step), G# to C (ascending major third), C to C# (ascending half step), C# to C (descending half step). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from C to C by unison.
Scales for Improvisation
C major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, C Mixolydian adds the flat seventh for an authentic blues-rock edge.