Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:4/4
K:F
['', 'FA A2 ABAG', 'Fd d2 dcAc']  
X:1
L:1/8
M:4/4
K:F
 DE |: FA A2 ABAG | FGAG FDCD | FA A2 ABAG | FGAd c2 cA | FA A2 ABAG | FGAG FDCD | Fd d2 dcAc | 
 AGEG F2 DE :: Fd d2 dcAc | AGFG FDCD | Fd d2 dcAc | dfed cdcA | Fd d2 dcAc | dfed edcd | f4 fedf | 
 edcA F2 DE :|  