Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/4=104
M:2/4
K:G
['dc cc cB BB BA AA']  
X:1
L:1/8
Q:1/4=104
M:2/4
K:G
"^Moderato"!f! GA Bc | dd dd | ec ge | d2 z2 |!p! ec ge | d2 z2 | dc cc | cB BB | BA AA | GB d2 | 
 dc cc | cB BB | BA AA | G2 z2 :|  