Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/4
M:2/2
K:G
['B A G E D']  
X:1
L:1/4
M:2/2
K:G
 z2 z B | A G E D | (G3/2 A/) B B | A G E D | E3 E | G G B d | e2 g e | d d d (e/d/) | B3 E | 
 G G B d | e2 g e | d d e (B/A/) | B2 d2 | B (A/G/) E E | G3/2 A/ B B | A G E D | E3 z |]  