Construct musical works adhering to the required format and the supplied musical theme.
X:1
L:1/8
M:2/4
K:A
['ca b2']  
X:1
L:1/8
M:2/4
K:A
 ecce | f3 e | acce | f4 | fefa | b4 | bb/a/ff/a/ | b>af/e/f/a/ | e4 | ca b2 | ca b2 | ec/b/ac | 
 ba f2 | bbbb | bf e2 | aaac | b>af/e/f/a/ | e4 |]  