25.61Motif through chord changes

Motif over C7:

E♭-E-G

At F7, adapt:

A♭-A-C

Same idea:

♭3 → 3 → 5

relative to F.

At G7:

B♭-B-D

Again:

♭3 → 3 → 5

You have transposed the blues gesture with the chord.