52.89Mini-composition exercise

Write a 32-bar blues/gospel-jazz piece centered on F.

Requirements:

• one 3-note main riff
• one clear call-and-response section
• ♭3→3 gesture
• ♭5→5 gesture
• F7 as tonic color
• B♭7 IV area
• one F-D7-Gm7-C7 turnaround
• one block-chord melody section
• four bars stop-time
• one 8-bar shout chorus
• final sparse ending

Restriction:

No more than six distinct harmonic roots in the entire piece.

Make the arrangement feel big through organization, not harmonic quantity.