Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/16
M:2/4
K:A
['a2ec (ea)ec e2ag (fe)dc B2ga (ge)fg', 'c2cA d2ed']  
X:1
L:1/16
M:2/4
K:A
 a2ec (ea)ec | e2ag (fe)dc | B2ga (ge)fg | (ag)fe (ed)ce | a2ec (ea)ec | e2ag (fe)dc | 
 B2ga (ge)fg | a2ab a4 :: B2>A2 c2cA | d2ed c2c2 | c2B2 =G2>B2 | B2A2 A4 | B2BA c2cA | d2ed c2dc | 
 B2ga (ge)(fg) | a>b(ag) a4 :|  