Some albums - and I’d like to do it with more of them - use the ‘grouping’ metadata field for Piece titles such as Symphony no. 9, or String Quartet no. 14 in C major, etc, in the grouping field, with the individual movements alone as the track title. This means they are nicely presented in my music playing software. Some of the albums - and I’d like to do it with more of them - use the ‘grouping’ metadata field for Piece titles such as Symphony no. 9, or String Quartet no. 14 in C major, etc, in the grouping field, with the individual movements alone as the track title. This means they are nicely presented in my music playing software. So where there is a grouping name I’d like to include that in the filename rule before the track title, like

<fileextension>/<genre name>/<album artist>/<album name>/<discnumber>?|<discnumber>-|<tracknumber>-<grouping>?|<grouping>-|<track name>