I want to achieve a conditional guess.
source tag %album% needs to be interpreted as 2 tags %album% (%setsubtitle%). I.e. Deep Purple In Rock (Anniversary Edition) would be split in Deep Purple in Rock and Anniversary Edition. Executing 2nd time the script shouldn't do a new split otherwise the 2nd tag will be overwritten.
but it didn't work.
Maybe what I want could be done using temporary tags but I have the feeling conditional guess is feasible. Probably I don't use the correct syntax.