Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:2/2
K:A
['ecBc A2 (cA)', 'B2 (cB) ABcd ecac ecaf ecBc |1']  
X:1
L:1/8
M:2/2
K:A
 (ucd) | ecBc A2 (cA) | FAEA FAEA | ecBc A2 (cA) | FBBA B2 :: (cB) | ABcd ecac | ecaf ecBc |1 
 ABcd ecaf | ecAc B2 :|2 ABAF ECEA | ceBc A2 |]  