Develop melodies adhering to the specified musical structure and using the offered theme.
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
['G2 BG', 'g2 bg'  
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
 D | G2 BG Bd d2 | c2 ec eg g2 | G2 BG Bcdg | edcB A2 G :| d | g2 bg afed | e>def gdBG | 
 g2 bg afgd | (ed)ef g3 a | (ba)gf (gf)ed |{f} edef gdBG | cBcd efge | dBGB A2 G |]  