Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:6/8
K:Dmix
['ABA DEG AGA', 'gec d2 c cAG A2 B cAG']  
X:1
L:1/8
M:6/8
K:Dmix
|: ABA DEG | AGA c2 A | GED C2 D | EDC DEG | ABA DEG | AGA cde | dcA GEG |1 ADD DEG :|2 ADD D3 |: 
 Add dcd | Ade gec | d2 c cAG | A2 B cAG | Add dcd | Ade gec | dcA GEG |1 ADD D3 :|2 ADD DEG ||  