Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
M:9/8
K:Dmix
['D2 d', 'F2 F']  
X:1
L:1/8
M:9/8
K:Dmix
|: D2 d AFd AFd | D2 d AFA GFE | D2 d AFd AFD | c2 c GEG c2 E :: F2 F FDF GFE | F2 A BAG FED | 
 F2 F FDG AFD | c2 c GEG c2 E :|  