Watch the Chordal Clashing online guitar lesson by Brad Carlton from Chord Studies: Evolving Blues Vol. 2
This is a blues-based 12/8 or triplet feel with a bassline that comes straight out of the Am pentatonic scale: A, G, C, D. Our first chord is the A 6/7, make sure you take notice that the 6 and ♭7 are side by side giving us a minor second interval. Thinking enharmonically the C9sus4 could also be thought of as B♭/C. In our last chord, the D9add4, take note of the clashing tension between the natural third and the fourth.