Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:4/4
K:D
['defe dBBA B2 AF', 'D2 faaf afdf gfed (3Bcd ef g3']  
X:1
L:1/8
M:4/4
K:D
|: D2 FA D2 FA | defe dBBA | B2 AF ABde | f2 ed fe e2 | dA A2 DEFA | defe dBBA | B2 AF ABdB | 
 AFEG FD D2 :: faaf afdf | gfed (3Bcd ef | g3 f gbag | faaf egfe | dB B2 AF F2 | DF F2 ABdf | 
 afef dBAF | A2 ag fd d2 :|  