Develop a musical composition by incorporating the given alphabetic framework and motif.
X:1
L:1/8
M:4/4
K:F
['F2 AB c2 f2', 'c4 d2 dB cAGF f2 af gedc']  
X:1
L:1/8
M:4/4
K:F
 F2 AB c2 f2 | cAGF GEDC | F2 AB c2 f2 | ecG=B c4 :: d2 dB cAGF | f2 af gedc | b2 ab a2 fc | 
 dBAG F4 :|  