Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/8
M:4/4
K:Amix
['GB g2', 'GB g2'  
X:1
L:1/8
M:4/4
K:Amix
 GB g2 fgag | fe g2 BcdB | GB g2 fgaf | gedB AAAB :| GB g2 dBBg | dBgd B2 AB | GB g2 dBBa | 
 gedB AAAB :|  