Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/16
M:2/4
K:A
['EAcA eAcA fAgA', 'cAEA cAEC A,CEA ceea']  
X:1
L:1/16
M:2/4
K:A
 EAcA eAcA | fAgA aAcA | EAcA eAcA | fAgA a2>e2 | ac'ea faec | defe dcBA | GBEB edBG | A2A2A2 z2 :: 
 cAEA cAEC | A,CEA ceea | gBBB eBBB | GEEE A2>E2 | cAEA cAEC | A,CEA ceea | c'aec fedB | 
 A2A2A2 z2 :|  