UPDATE: Also check the workaround Zak posted below. I think it's better than mine.Currently, it's not possible to add one genre to multiple genre categories so I came up with this workaround to have one genre show up in multiple genre categories. I am not too familiar yet with MB's tagging tools so for this workaround I used the freeware Mp3tag but if someone knows how to do the same using only MB, please post the instructions in this thread.
Steps:1. Find all the files you wish to add to multiple genre categories and add them to Mp3tag (you can just drag and drop your folder containing all your music files).
2. Select all the files in Mp3tag (Ctrl + A) then go to "Convert > Tag to Tag". Select "GENRE" as the field and in the format string type:
%genre%; %genre% 2; %genre% 3;
Press "OK", this will add additional genre tags to your file. For example, if the genre of a file was "Pop-Rock", the new genre will be "Pop-Rock; Pop-Rock 2; Pop-Rock 3". In MusicBee, only the first genre before a semicolon is displayed, so this won't make your genre column look ugly (it will still show in MB as "Pop-Rock").
3. Now go to your categories list in MB (Edit > Preferences > Tags (2) > Categorise > Genre Category)
There, you can use all 3 genres in your file to add the file to up to 3 different genre categories. For example, you can now add "Pop-Rock" to one category, "Pop-Rock 2" to another, and "Pop-Rock 3" to yet another category.
Downside:Editing the genre tag with Mp3tag is extremely fast and the extra genre tags didn't increment file size in my case (not even a single byte). The downside to this workaround is that other music software (like foobar2000) might display the additional genres in their genre column.
Optional:You can change the string type in Mp3tag to be able to add the file to more than 3 genre categories (just continue the sequence %genre%; %genre% 2; %genre% 3; %genre% 4; %genre% 5.
You can also edit what the additional genres look like by editing the string type format (if you don't want a space between the genre and the number, just delete the space from the format string. You can also replace the numbers with symbols or other letters). For files that already have multiple genres separated by semicolons you will need to follow different steps in Mp3tag (which I can post here if needed).
Let me know what you think of this workaround and if you have any suggestions!
Mp3tag download link:http://www.mp3tag.de/en/download.htmlP.S. I wonder if Steven could use this same concept in MB v3.0 to support adding a genre to multiple categories w/o needing to edit the metadata. Maybe when a file is added to MB, additional tags like the ones above are automatically created BUT only stored in MB and not embedded into the audio file. Then, in the categories list, add support to automatically append a number next to genres that already belong to another category (and maybe this appending could be invisible to the user for a seamless experience).