Develop a musical piece using the given motif and adhere to the outlined structure.
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
['GB dB AG AB cd ef gf', 'cd ef gf gf ec'  
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
|: D2 | G2 GF GB dB | AG AB cd ef | gf gf ec AG | FG AF DE FD | GF EF GB dB | AG AB cd ef | 
 gf gf ec AF | G2 G2 G2 :: Bc | de dc Bc df | ef ed cd ef | gf gf ec AG | FG AF DE FD | 
 GF EF GB dB | AG AB cd ef | gf gf ec AF | G2 G2 G2 :|  