Create a musical piece using the provided alphabetic structure and motif.
X:1
L:1/8
M:3/4
K:A
['=cB A2 c2 B4 e2']  
X:1
L:1/8
M:3/4
K:A
 E2 | A3 GAB | =cA B2 e2 | d=c B2 d2 | =cB A2 c2 | B4 e2 | =c4 E2 | A3 GAB | =cA B4 | e3 d e2 | 
 d=c B4 | B2 e2 d2 | d=c B4 | B2 dc B2 | =cB A2 c2 | B4 e2 | A4 |]  