Construct a musical piece that follows the designated lettered structure and integrates the provided motif throughout.
X:1
L:1/8
Q:1/4=130
M:4/4
K:D
['fe d2 de d2 cB B>c de', 'fe d2']  
X:1
L:1/8
Q:1/4=130
M:4/4
K:D
 fe | d2 de d2 cB | B>c de f2 ec | B2 BA F2 F^A | B4 B2 fe | d2 de d2 cB | B>c de f2 ec | 
 B2 BA F2 F^A | B4 B2 || Bc | d2 e2 f3 d | e2 f^g a2 f>b | b>a fe d2 f2 | e3 d B2 fe | 
 d2 de d2 cB | B>c de f2 ec | B2 BA F2 F^A | B4 B2 |]  