Compose music pieces conforming to the prescribed pattern and incorporating the provided musical concept.
X:1
L:1/8
M:2/2
K:A
['(AB) ABcd efec eaga', 'ceef ecAB ceef eaga'  
X:1
L:1/8
M:2/2
K:A
 vA2 (AB) ABcd | efec eaga | A2 (AB) ABcA | FBBA GABc | A2 (AB) ABcd | efec eaga | fgag fedc | 
 BcBA GBBe |] ceef ecAB | ceef eaga | ceef ecAc | FBBA GABd | ceef ecAB | ceef eaga | fgag fedc | 
 BcBA GBBe |]  