Produce musical creations that correspond to the presented chord variations.
'C7', 'F', 'C7', 'F', 'C7', 'F', 'C7', 'F', 'F', 'C7', 'F', 'C7', 'F', 'C7', 'F', 'C7', 'F', 'F'  
X:1
L:1/8
M:3/4
K:F
 af |:"C7" gb eb g2 |"F" fa ca f2 |"C7" eg cg ec |"F" fA cf ac' |"C7" gb eb g2 |"F" fa ca f2 | 
"C7" eg cg ec |1"F" f2 z2 af :|2"F" f2 z2 c2 |:"C7" bg eb ge |"F" af ca fc |"C7" ge cg ec | 
"F" fA cf ac' |"C7" bg eb ge |"F" af ca fc |"C7" ge cg ec |1"F" f2 z2 c2 :|2"F" f2 z2 z2 |]  