Compose melodies by merging the prescribed musical pattern and the supplied theme.
X:1
L:1/8
Q:1/8=240
M:2/4
K:G
['GB dB', 'GB dB'  
X:1
L:1/8
Q:1/8=240
M:2/4
K:G
"^Polka" GB dB | Ad Ad | GB dB | c2 BA | GB dB | Ad Ad | gd Bd | AB G2 :| GB dB | g2 gf | ed ef | 
 ed BA |1 GB dB | cB Ac | BA GF | G4 :|2 DG BD | EG DE | FD EF | G4 |]  