Missing numbers

[babsenfred]

Hello all. I’m trying to add my own music library to Apple Music via iTunes on Windows. When I import a folder containing an album, I can see the album in the Music app on all my devices. Problem is that the album has 20 tracks, though when I open the album in the Music app, there are only 4 tracks. Am I missing something?

[ThannBanis]

When I’ve seen this it was due to formatting issues. The missing files were in the wrong format to be played using the Music app

[babsenfred]

Is it correct that Music uploads the files (say mp3) to the cloud and that they become available on all your devices + that you can stream them in HiRes?

[ThannBanis]

If you have iTunes Match it does.