Construct a melodically pleasant tune that corresponds with the specified chord structure.
'F', 'C7', 'F', 'C7', 'F', 'C7', 'F', 'C7', 'F', 'F', 'Bb', 'C7', 'F', 'Bb', 'C7', 'F', 'F', 'C7', 'F', 'C7', 'F'  
X:1
L:1/8
M:2/4
K:F
 (3C/D/E/ |"F" FE FA |"C7" c/B/G G/F/A/G/ |"F" FE FA |"C7" c/B/G/E/"F" F(3C/D/E/ | FE FA | 
"C7" c/B/G G/F/A/G/ |"F" FE FA |"C7" c/B/G/E/"F" F2 |:"F" A>B cA |"Bb" Bc dd |"C7" G>A BG | 
"F" A/B/A/G/ FF | A>B cA |"Bb" Bc dd |"C7" G>A BE |"F" FF F z ::"F" F2 E2 | F2 A2 | 
"C7" c2 (3(BAG) |"F" F2 z2 | F2 E2 | F2 A2 |"C7" c2 (3(BAG) |"F" F2 z2 :|  