10.7Play it

Keep:

C and E♭ and G.

Move one voice:

C minor: C-E♭-G-C

then:

C-E♭-G-B

then:

C-E♭-G-B♭

then:

C-E♭-G-A.

Listen to the descending top/inner line:

C → B → B♭ → A

This is one of the most expressive minor sounds in jazz/pop/classical crossover harmony.