Construct a musical arrangement that blends the supplied motif while maintaining the specified alphabetical order.
X:1
L:1/8
M:6/8
K:D
['DED AFD DED B3 ABc', 'FED ABA ecA ABA f3 efg agf', 'D2 d', 'A2 a']  
X:1
L:1/8
M:6/8
K:D
|: DED AFD | DED B3 | ABc def | ged cBA | DED AFD | DED B3 | ABc dcB | ABG FED :: ABA ecA | 
 ABA f3 | efg agf | efd cBA | a3 f3 | ecA B3 | ABc dcB | ABG FED :: D2 d D2 d | D2 d B3 | ABc def | 
 ged cBA | d3 B3 AFD B3 | ABc dcB | ABG FED :: A2 a A2 a | A2 a f3 | efg agf | efd cBA | a3 f3 | 
 ecA B3 | ABc dcB | ABG FED :|  