Develop musical compositions in line with the specified format and incorporating the provided musical theme.
X:1
L:1/8
M:2/4
K:G
['GGDD EEDD CCB,B, DD A,2']  
X:1
L:1/8
M:2/4
K:G
 GGDD | EEDD | CCB,B, | DD A,2 | GGDD | EEDD | CCB,B, | DD A,2 | GGAA | BGAA | GGAA | BG A2 | 
 GGdd | eedd | ccBG | AF G2 | G>ABG | EE E2 | A>BcA | GB d2 |]  