Construct a musical arrangement that blends the supplied motif while maintaining the specified alphabetical order.
X:1
L:1/8
M:3/4
K:D
['a^g ab ag fe fa gf ed', 'e^d ec Ac a^g af df']  
X:1
L:1/8
M:3/4
K:D
 df | a^g ab ag | fe fa gf | ed eg fe | dc dA ^GA | a^g ab ag | fe fa gf | ed eg fe | d4 :: (^cd) | 
 e^d ec Ac | a^g af df | e^d ec Ac | a^g af df | a^g ab ag | fe fa gf | e^d eg fe | d4 :|  