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
M:3/4
K:Amin
['A A B c c B/c/ B', 'e c']  
X:1
L:1/4
M:3/4
K:Amin
 A | A B c | c B/c/ B | B G G | B A/B/ A | A B c | c B/c/ B | B G G | A2 :: c/d/ | e c c/d/ | 
 e c c/e/ | g g/e/ a/g/ | e c c/d/ | e c c/d/ | e c c/c/ | B G G | A2 :|  