Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/16
Q:1/4=120
M:4/4
K:C
['B3 z']  
X:1
L:1/16
Q:1/4=120
M:4/4
K:C
 GA2 z4 A B2 z4 B | c2 z cc2dc B3 z G | A2 z4 AB2 z4 Bc2 z | cc2Bc2<d2 z ddBGd2d | 
 dBGd2GA2 Ad2d2<B2 | G2>d2dBGd2ddBGd2G | A2Ad2d2<G2 z G3 z e3 z | c3 z c2B2 c2d2c3 z | 
 B3 z B7 z c3 z | A3 z A2G2 A2B2A3 z | G3 z G7 z e3 z | c3 z c2B2 c2d2c3 z | B3 z B3 z G3 z A3 z | 
 A3 z B3 z B3 z c3 z | e3 z c3 |]  