Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:4/4
K:G
['', 'dB (3BcB dBGB', 'edBd g2 bg faaf gefd edef gbbg']  
X:1
L:1/8
M:4/4
K:G
 ge |: dB (3BcB dBGB | dBGB (3gag fe | dB (3BcB dBGB | ge (3fed eage | dB (3BcB dBGB | d2 dB dega | 
 bagb agfa |1 gefd eage :|2 gefd e2 ef || g2 bg faaf | gef/e/d edBd | g2 bg faaf | gefd edef | 
 gbbg fg a/g/f | gefd edfa | g2 ge fefg |1 afdf e2 ef :|2 afdf e4 ||  