Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
M:4/4
K:D
['FGAF DEFD']  
X:1
L:1/8
M:4/4
K:D
 A2 AG | FGAF DEFD | E.A.A.A ABAG | FGAF DEFD | (3Bcd ec dBAG | F2 AF DEFD | EA A2 ABAG | 
 FGAF DEFD | (3Bcd ec d2 z g | fddc dfaf | edcd efge | fddc dfag | faeg fdde | fddc dfaf | 
 edcd efge | fdef gbag | faec dBAG ||  