Develop musical compositions in line with the specified format and incorporating the provided musical theme.
X:1
L:1/8
M:4/4
K:G
['', 'BGGF GEDG EDEG AEGE DEGA', 'ga bg g2 agef'  
X:1
L:1/8
M:4/4
K:G
 A |: BGGF GEDG | EDEG AEGE | DEGA BABd | ed d2 Bdgd | BGGF GEDG | EDEG AEGE | DEGA B3 c |1 
 dBAc BAGA :|2 dBAc BABc || dggf gedg | eaag a2 ga | bg g2 agef | gedc BABc | dggf gedg | 
 eaag a2 ga | bg g2 agef |1 gedc BABc :|2 gedc BAGA |]  