Compose a musical piece by integrating the alphabetic representation of the specified sequence and the provided motif.
X:1
L:1/8
Q:3/4=50
M:3/4
K:Amin
['a2 efed c2 A2 B2 c2 AB', 'e6 B2 BcBc d2 cBAG c2 cdcd']  
X:1
L:1/8
Q:3/4=50
M:3/4
K:Amin
 a2 efed | c2 A2 B2 | c2 AB cd | edefge | a2 efef | g2 dede | f2 c2 d2 | e6 :: B2 BcBc | d2 cBAG | 
 c2 cdcd | e2 dcBA | d2 dede | f2 edcB | cd B3 A | A6 :|  