Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
M:6/8
K:G
['', 'G3- GAG FDE F2', 'B3 BAG', 'd2 e f2 g a>b(a/g/) f2 d']  
X:1
L:1/8
M:6/8
K:G
 F |: G3- GAG | FDE F2 D | G3- GFG | A2 d dcA | G3- GAG | FDE F2 d | cAG F2 G | AGG G2 D :: 
 B3 BAG | A3 AGF | G3 GFG | Add cAG | B3 BAG | AFG A2 d | cAG F2 G | AGG G2 D :| d2 e f2 g | 
 a>b(a/g/) f2 d | cAG F2 G | Add cA.G | d2 e f2 g | a>b(a/g/) f2 d | cAG F2 G | AGG G2 ||  