Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/16
M:2/4
K:A
['EAAB cBcA dcde f2(ef) gedc', 'A2 (fg) a2af g2ge fgfd e2(ed) cdef']  
X:1
L:1/16
M:2/4
K:A
 (AG) | EAAB cBcA | dcde f2(ef) | gedc dfed | cAGF G2G2 | EAAB cBcA | dcde f2(ef) | gedc dfec | 
 A2AA A2 :: (fg) | a2af g2ge | fgfd e2(ed) | cdef gfed | cAGF G2G2 | EAAB cBcA | dcde f2(ef) | 
 gedc dfec | A2AA A2 :|  