65.29Level 13 — functional transposition

Now change the motif to preserve harmonic function.

Suppose original motif over Cm is:

1-♭3-5.

Move to Fm.

Use:

F-A♭-C.

Same functional degrees.

Then G7:

perhaps 1-3-5:

G-B-D.

Now the absolute notes change, but the harmonic role stays consistent.