How are sub tracks modelled and handled? I recently imported the Fresh Air soundtrack album from Discogs Release “Fresh Air” by Various Artists - MusicBrainz
Pictured above is the track listing where tracks 6, 13 and 16 are two songs glued together and on Discogs this was treated a sub-tracks ie 6.1 and 6.2. How is this best modelled on MusicBrainz? When I ripped this album from my CD collection it only created 16 tracks / MP3 files.
6 - The Fighter / Fresh Air Country Theme - Sunday / Carol Ralph, Roger James, Peter Ansom
No clean answer, just has to be slashes. Which means the artists of the two tracks are mushed into one with a slash as a join phrase. (There is a Ticket for this somewhere…)
The best way to look at it is that MusicBrainz lists the actual tracks as found on the CD. Which means a track list that matches the rip. If you uploaded the DiscID this tracklist numbering would have been enforced.
The import scripts are fairly basic and not handle stuff like this.
These look like artist names, though, not pay off the titles.
Sorry. Don’t understand your point? Yes, they are the artists of the second track. Maybe I was just a bit rubbish with my reply layout. 
See the above image and track 6. In MB would would have to make a combined track 6 as follows.
Track Number: 6
Track Title: The Fighter / Fresh Air Country Theme
Track Artists: Sunday / Carol Ralph, Roger James, Peter Ansom