Develop a music arrangement by incorporating the given alphabetical sequence and the provided motif.
X:1
L:1/8
Q:3/8=100
M:9/8
K:D
['D2 D FED EFG F2 F AGF', 'ABc def']  
X:1
L:1/8
Q:3/8=100
M:9/8
K:D
 D2 D FED EFG | F2 F AGF GAB | ABc def gec | dAG FGA GFE | D2 D FED EFG | F2 F AGF GAB | 
 ABc def gec | dAG FGA D3 :: afd AFD BGE | AFD EFG ABc | def ged cde | dAG FGA FED | D2 D FED EFG | 
 F2 F AGF GAB | ABc def gec | dAG FGA D3 :|  