Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
M:6/8
K:A
['A2 E', 'A2 a aga A2']  
X:1
L:1/8
M:6/8
K:A
 E | A2 E Acd | ede ABA | =G2 D G>Bc | dcd =G2 B | A2 E ABd | e2 f =gfg | edc Bcd | ecA A2 :: a | 
 aga A2 a | aga A2 =g | =gfg =G2 g | =gfg =G2 B | c2 c d2 d | e2 f =gfg | edc Bcd | ecA A2 :|  