Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['G2 BG dBBG', 'gddc BdBG']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
"^reel" G2 BG dBBG | EAAG FAFD | G2 BG dBBG | EcAF G2 G2 :| gddc BdBG | EAAG FAFD | gddc BdBG | 
 e2 fa/f/ g2 g2 | gddc BdBG | EAAG FAFD | gdec BdBG | ecBA G2 G2 |]  