Construct a musical arrangement using the specified alphabetical sequence and the given motif as a foundation.
X:1
L:1/8
M:3/2
K:Amix
['a2 ga f2 ge eg fe da', 'A/B/c/d/ eA cA GB Bd']  
X:1
L:1/8
M:3/2
K:Amix
|: a2 ga f2 | ge eg fe | da ca Bd | cA Ac BA :: A/B/c/d/ eA cA | GB Bd cB | A/B/c/d/ eA cA | 
 GB Bd cA :|  