Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
M:4/4
K:G
['BGcA defg', 'fadg e3 g']  
X:1
L:1/8
M:4/4
K:G
 BGcA defg | G2 BG AFDc | BGcA defg | dBcA G3 c | BGcA defg | G2 BG AFDc | BGcA defg | dBcA G3 d || 
 g3 a fadg | e3 g dGBd | cAdc BGcB | A3 G FAdf | geag fadg | e3 g dgBd | cAdc Bd g2 | dBcA G3 c ||  