Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:4/4
K:Amix
['e3 f efed cdef g2 ag f2', 'efec ABcA']  
X:1
L:1/8
M:4/4
K:Amix
|: B/c/d | e3 f efed | cdef g2 ag | f2 de fded | BAAB defd | e3 f efed | cdef g2 ag | f2 de fded | 
 BAAB A2 :: B/c/d | efec ABcA | BABc defd | efec ABcA | BA^GF E2 cd | efec ABcA | BABc dfeg | 
 f2 ef gfed | BAAB A2 :|  