Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:4/4
K:G
['G2 dG', 'BGGG [Ae]aab a2 g/f/e aged cdef gbaf']  
X:1
L:1/8
M:4/4
K:G
|: G2 dG BGdG | G2 dG BGGG | A2 eA cAeA | A2 ed cAFA | G2 dG BGdG | GAdc BGGG | ABcd efge |1 
 aged cAFA :|2 aged cdef |: gbaf g2 ef | gedc BGGG | [Ae]aab a2 g/f/e | aged cdef | gbaf g2 ef | 
 gedc BGGG | ABcd efge |1 agf/e/d cdef :|2 agf/e/d cAFA ||  