Apple Music Splits tracks and creates two entries for album

Check album artist, sometimes there are multiple composers. I usually leave the artist field alone but delete album artist.

Did you try checking of part of a compilation for all the songs?

Check off that compilation box for all the songs in that album, it might consolidate the album

I'm having a similar problem. The CD is a compilation and it wasn't in Apple's database. I manually entered the title for the album, and then entered the individual track titles and artists. I left all the other fields that weren't already populated blank. Music split it into 2 albums, one containing tracks 3-13, and the other containing track 14. Tracks 1 and 2 don't show up unless I specifically search for the track names. I'll attach screen shots to demonstrate.

This is the album in the Finder. There are 14 tracks by 13 artists (tracks 7 and 8 are the same artist). You can see at the top of the window that the title is called "Dulcimer Players News 45_3 (Fall 2019). In Music, I entered the underscore as a colon, but in the filename, it was changed. I doubt that's the issue, though.

When I search for the album in Music, it shows 2 albums with the same name.

One has track 14; the other has tracks 3-13. No signs of tracks 1 and 2.

If I search Music for the name of track 1, it finds it.

If I click on the icon, it will play, but if click on the text, it shows me the album with only track 14.

Here's track info from tracks 1, 3, 4, and 14.

I've run into this problem on other (non-compilation) albums, too.

How can I consolidate this back into one album?

That's weird. I shut down the computer last night, and when I restarted this morning, tracks 1 and 2 have shown up in the album with track 14.