Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/4
Q:1/4=115
M:6/4
K:A
['C E2']  
X:1
L:1/4
Q:1/4=115
M:6/4
K:A
 C3/2 ^B,/ C E2 E | F E D C3 | C3/2 B,/ C D3 | D C3/2 D/ E3 | C3/2 ^B,/ C E2 E | F E D C3 | 
 C3/2 B,/ C E2 D | C3- C2 z | F3/2 ^E/ F F2 D | C ^B, C E3 | E3/2 E/ E G2 E | ^D3/2 ^D/ ^D E2 =D | 
 C3/2 ^B,/ C E2 E | F E D C3 | C B,3/2 C/ E2 D | C3- C2 z |]  