Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:2/4
K:A
['cAce a2', 'dfBd ceAc BEGB']  
X:1
L:1/8
M:2/4
K:A
 e | cAce | a2 e2 | cAce | a2 c2 | d2 b2 | c2 a2 | B2 g2 | a2 z :: c | dfBd | ceAc | BEGB | Acec | 
 dfBd | ceAc | BEGB | A2 z :|  