Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/16
M:2/4
K:D
['D2DA FDdF E2Ee ^GEeg fdec', 'abaf dfaf']  
X:1
L:1/16
M:2/4
K:D
 D2DA FDdF | E2Ee ^GEeg | fdec dBcAGBAF DDDD2 :: abaf dfaf | gebe gebe | abaf dfaf | gfaf d2ddd2 | 
 abaf dfaf | gebe gebe | dfeg fadc | d>BA>F DD/D/D :|  