One flac file - many tracks - no cue - yet it's 'split' somehow I have a music album in one FLAC file. There is no CUE file. When I try to play it with VLC or CMUS, it doesn't recognize individual tracks and plays it as one large file.

BUT if I import it into Vox player, it automatically recognizes individual tracks and splits it (gives it proper names and all). How is it possible? What am I missing? How do I make VLC and CMUS recognize the splits without CUE?

EDIT:
When I opened the flac file in a hexeditor, after a couple hundreds of symbols I found a long string starting with "CUETools 2.1." and containing all the cue information. How is it possible? Can I extract it? Why does almost no program recognize this type of internal cue instead of external cue file? It even contains the album cover image which is otherwise nowhere to be found in the file folder!
You can use metaflac to export both the cuesheet and cover image.

metaflac--export-cuesheet-to=out.cue --export-picture-to=out.png input.flac