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
M:2/4
K:C
['G,/G,/E, G,/G,/E, E,E, E,E, |]:', 'E, z']  
X:1
L:1/8
M:2/4
K:C
 G,/G,/E, G,/G,/E, | E,E, E,E, |]: E<E F/E/E/D/ | D<A, C/A,/A,/G,/ | A,/G,E,/ E,E, | E,G, A,<E, | 
 E,/C,/E, E, z | G,G, C/A,G,/ | E,E, E,E, | G,<G, (3C/A,/A,/ G,/E,/ | G,G, (3A,A,G, | E,E, E,G, | 
 G,G, E, z | E,<E, E,E, | G,G, C/A,G,/ | E,E, E,E,/ z/ | G,<G, (3C/A,/A,/ G,/E,/ | G, z (3A,A,G, | 
 E,E, E,G, | G,G, E, z | C,<E, E,E, | G,G, A,/G,G,/ | C/A,/G,/E,/ E,G, | G,E,/E,/ C,E, | 
 E,E, G,/<E,/G,/>G,/ |[M:3/8] E, z E, |[M:2/4] A,/A,/G, G,A, | (3A,G,E, E,/E,/G, | 
[M:3/4] G,/E,E,/ G,/E,/E,/>E,/ G,2 | G,/G,/E, G,G, E, z |[M:2/4] E,<E, E,E, :|  