What is the purpose of an indexTags setting of Group\:Work

[haggis999]

I can't be certain about things I may or may not have done over four years ago, but the addition of CLASSICALGENRE=Classical:Classical library to indexTags was only done a couple of days ago. That change was definitely made using the properties dialogue box.

When you say that I don't need to know anything about the backslash rules, does that mean I don't need to use the backslash in my Group\:Work entry in indexTags? Would Group:Work do the same job?