Construct a musical arrangement that blends the supplied motif while maintaining the specified alphabetical order.
X:1
L:1/8
M:4/4
K:Dmix
['', 'dc (3ABA GE ADED A,DDE FGAB (3cec', 'Ad d2 Adfd adfd']  
X:1
L:1/8
M:4/4
K:Dmix
 dc |: (3ABA GE ADED | A,DDE FGAB | (3cec de cAGE | C2 A,B, CDEG | ADED ADBc | AGED CDEG | 
 ABcd ecdB | cAGE D2 cB :: Ad d2 Adfd | adfd adfd | Ac c2 AcBc | gcec gcec |1 Ad d2 Adfd | 
 adfd dcAB | cBcd ecdB | cAGE D2 cB :|2 Add^c defg | abaf g2 ag | fdAB cBcd | cAGE D4 ||  