Remove all text after specific character(s)

DetlevD · January 31, 2013, 9:24am

It looks like as you want to reduce a multi-value tag-field GENRE to a standard single-value tag-field GENRE, while keeping the first value item from the multi-value tag-field GENRE.

You can try this ...
Converter: "Tag - Tag" or Action: "Format value"
Field: GENRE
Format string: $regexp($meta_sep(GENRE,';'),'^(.+?);.*$','$1\\')
... or simpler ...
Format string: $meta(GENRE,0)'\\'

From:
(multi-value)
GENRE=Folk Rock
GENRE=Another
GENRE=A Third
To:
(single-value)
GENRE=Folk Rock