Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/8
M:4/4
K:Amix
['ABcd egfg edBd', 'aAAA aAbA aAAA agef'  
X:1
L:1/8
M:4/4
K:Amix
|: ed | c2 B2 ABcd | egfg edBd | gBBB gBaB | gBBB gfed | cdBc ABcd | egfg edBd | gfgd efed | 
 c2 B2 A2 :: eg | aAAA aAbA | aAAA agef | gBBB gBaB | gBBB gfeg | aAAA aAbA | aAAA agef | 
 gfgd efed | cdBc A2 :|  