Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/8
M:4/4
K:G
['G2 Bc d2', 'EDDE g2 ed cdef gfed ea a2'  
X:1
L:1/8
M:4/4
K:G
|: G2 Bc d2 BG | G2 AG EAAB | G2 Bc d2 Bd | cBAG EDDE :: g2 ed cdef | gfed ea a2 | gage d2 dB | 
 cBAG EG G2 :|  