Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/16
M:3/8
K:F
['cc ddccBB A2AAAA GGGGGG']  
X:1
L:1/16
M:3/8
K:F
 cc | ddccBB | A2AAAA | GGGGGG | F4 cc | ddccBB | A2AAAA | GGGGGG | F6 | A4 cB | A2cBA2 | G4 BA | 
 G2BAG2 | A4 cB | A2cBA2 | G2G2AG | G2 z2 |]  