Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:2/2
K:A
['ECA,C E2 (EF)', 'cAA ue A<A(cA) (eA)=gA fdec dBBd A<A', 'cAA e A<A(cA) (eA)A=g fdec dBBd cAGA']  
X:1
L:1/8
M:2/2
K:A
 uF | ECA,C E2 (EF) | ABcA BB,B,F | ECA,C E2 (EF) | EFAB cAA :| ue | A<A(cA) (eA)=gA | fdec dBBd | 
 A<A (cA) (eA)Aa | (f/g/a) (e>f) cAA || e | A<A(cA) (eA)A=g | fdec dBBd | cAGA FAEA | 
 (c/d/e) (f/g/a) cAA"^D.C." |]  