$eq_all(%album%,Japanese, Edition) won’t work, that does an equality check. And actually this can’t be true, it would mean that
%album% is at the same time exactly “Japanese” and " Edition".
The $rsearch approach should actually work, but depending on what you are looking see the comment of @IvanDobsky regarding
%_releasecomment%. Maybe a simple
will do what you want.
I am also curious regarding the Version tag and Roon. Do you have details how Roon is using this and how it expects this to be technically stored in the tags? Roon is usually very sparse with information regarding its technical details, so I just wonder if this is something we should support better in Picard natively or with a plugin.
Note that, since Picard does not now about this tag, it will be stored as a
TXXX:Version frame in ID3 and as
VERSION in FLAC / Vorbis. It won’t be stored at all in MP4 and WMA.