Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/8
M:4/4
K:G
['B2 A2 GFGA c2 B2 A4 dedc', 'BcBA G2', 'B4 EFGA BcBA G2'  
X:1
L:1/8
M:4/4
K:G
 B2 A2 GFGA | c2 B2 A4 | dedc BcBA |1 GABc B2 G2 :|2 GABA G4 :: B2 B2 c3 B | AFAB G4 | A2 A2 BcBA | 
 G2 F2 E4 | EFGE A4 | GFGA B4 | EFGA BcBA | G2 A2 B4 :: B2 B2 e3 d | cBAc B4 | EFGA BcBA | 
 G2 A2 B4 | B2 B2 e3 d | cBAc B4 | EFGA BcBA | G2 F2 E4 :|  