Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/4
M:6/4
K:G
['A2 A']  
X:1
L:1/4
M:6/4
K:G
 G | G2 G A2 A | G3 G2 _B/c/ | d2 A _B2 A/G/ | A2 A | c2 c c2 d/_e/ | d3 A2 _B | A2 G =F2 G | 
 A2 A | c2 c c2 d/_e/ | d d c _B | A2 G |]  