Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
Q:1/8=150
M:4/4
K:G
['G2 G>A B<G G2 ABcd e<A AB', 'agef g2 g>a g<edB |1 (3ABc BA']  
X:1
L:1/8
Q:1/8=150
M:4/4
K:G
 G2 G>A B<G G2 | ABcd e<A AB | c2 ec B2 dB |1 (3ABc BA GEDE :|2 AcBA GE D2 || g2 g>a g<e d2 | 
 eaab agef | g2 g>a g<edB |1 (3ABc BA GE D2 :|2 AcBA GEDE |"^last time" G8 |]  