Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
M:4/4
K:F
['', 'FG AFFF AFGA', 'f2 e2']  
X:1
L:1/8
M:4/4
K:F
 FG |: AFFF AFGA | BdcA G2 FG | AFFF AFGA |1 BdcA F2 FG :|2 BdcA F3 |: e | f2 e2 dcde | 
 f2 e2 ddcA | BdcA G3 e | f2 e2 dcde | f2 e2 ddcA | BdcA F3 :|  