Construct a musical piece that follows the designated lettered structure and integrates the provided motif throughout.
X:1
L:1/8
M:4/4
K:D
['d2 fd Adfd', 'afdf eA (3Bcd ef (3gfe :|2 afge']  
X:1
L:1/8
M:4/4
K:D
|: d2 fd Adfd | d2 fa gece | d2 fd Adfd |1 eA (3Bcd egfe :|2 eA (3Bcd ef (3gfe |: a3 b afdf | 
 a2 fd ef (3gfe |1 a3 b afdf | eA (3Bcd ef (3gfe :|2 afge fdec | ABcd egfe ||  