Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:2/4
K:G
['dd/c/Bd dc/B/cd B2']  
X:1
L:1/8
M:2/4
K:G
 D | G2 Ac | BB/A/GA | B2 ce | dd/c/Bd | dc/B/cd | B2 z d | B2 d2 | ee/d/cB | A2 c2 | dd/c/Bd | 
 dc/B/cd | B2 z d | B2 d2 | ee/d/cB | A2 c2 | dd/c/Bd | dc/B/cd | B2 z |]  