Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:6/4
K:F
['c2 c3 B A2 B3 A G2']  
X:1
L:1/8
M:6/4
K:F
 c2 | c3 B A2 B3 A G2 | A4 F2 A3 G F2 | G4 F2 GFED E2 | F6- F4 c2 | c3 B A2 B3 A G2 | 
 A4 F2 A3 G F2 | G4 F2 GFED E2 | F6- F4 GA | B4 B2 B4 c2 | d4 c2 d3 e f2 | e3 d c2 dc=BA B2 | 
 c6- c4 GA | B4 B2 B4 c2 | d4 c2 d3 e f2 | e3 d c2 dc=BA B2 | c6- c4 |]  