Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
M:12/8
K:D
['ef/e/d cBA']  
X:1
L:1/8
M:12/8
K:D
|: ABc | dAd f2 f e2 d c2 A- |[M:6/8] A2 c d3 |[M:9/8] BAG F2 D- D2 A | 
[M:12/8] d2 d f/g/af ef/e/d cBA |1 BB/c/d ecA d3 :|2 BB/c/d ecA d3- d2 |: g | f2 g afd b2 f g2 e | 
 f2 d cdf ef/e/d cBA | B2 d ce/e/e d2 f eg/g/g |1 f/g/af edc d3- d2 :|2 f/g/af edc d3 ||  