Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/8
M:4/4
K:A
['Acea gaea gfed cABc d3 f', 'fdAg eB (a2 a)agf edcB'  
X:1
L:1/8
M:4/4
K:A
 Acea gaea | gfed cABc | d3 f ecAc | BAGF EFGB | Acea gaea | gfed cABc | d3 f ecab | c'2 a2 a4 :: 
 fdAg eB (a2 | a)agf edcB | c3 f ef (g2 | g)gfg abag |1 fdAg eB (a2 | a)agf edcB | c3 f efga | 
 bagf agfe :|2 fdAg eB (a2 | a)agf edcB | ceab c'3 d' | c'2 a2 a4 ||  