Construct a musical piece that follows the designated lettered structure and integrates the provided motif throughout.
X:1
L:1/8
M:2/2
K:A
['e2 c2', 'c2 d2']  
X:1
L:1/8
M:2/2
K:A
 fg | a2 g2 f2 e2 | fgaf e2 c2 | e2 cd e2 c2 | (B3 c B2) fg | a2 g2 f2 e2 | fgaf e2 c2 | 
 e2 cA B2 G2 | A4 !slide!A4 :: !slide![AA]2 [AA]2 B2 c2 | d2 fd ecBA | e2 c2 d2 c2 | B3 c BAEF | 
 !slide![AA]2 [AA]2 B2 c2 | d2 fd ecBA | e2 cA B2 G2 |1 A4 !slide!A2 EF :|  