Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
M:4/4
K:Amin
['a2 ef edcd cBBc BA^GA dcBc BA^GA', 'FABc- cBAG- GABc']  
X:1
L:1/8
M:4/4
K:Amin
|: a2 ef edcd | cBBc BA^GA | dcBc BA^GA | e^def e=dcB | a2 ef edcd | cBBc BA^GA | dcBc BA^GA | 
 edcB A4 :: FABc- cBAG- | GABc dcBA | FABc- cBAG- | GABc dc B2 | FABc- cBAG- | GABc dcBA | 
 e c2 e B2 eA- |1 Aefe dcBA :|2 Aefe ge^ge ||  