I think I either found some kind of bug or Apple Music is really weird.
The similar songs for Anaal Nathrakh - Endarkenment [0] have Annal Nathrakh with エンダーケンメント at the top. So a misspelling of the band, and apparently (according to google translate) a Japanese transliteration of the song title (Endākenmento, enderkenment). The song itself is literally the same one, others listed are their other songs, or more Japanese transliterations of their songs. The weird versions can be played, but the linked page does not exist on Apple Music [1]
The similar songs for Anaal Nathrakh - Endarkenment [0] have Annal Nathrakh with エンダーケンメント at the top. So a misspelling of the band, and apparently (according to google translate) a Japanese transliteration of the song title (Endākenmento, enderkenment). The song itself is literally the same one, others listed are their other songs, or more Japanese transliterations of their songs. The weird versions can be played, but the linked page does not exist on Apple Music [1]
[0]: https://maroofy.com/songs/1522388463
[1]: https://music.apple.com/album/%E3%82%A8%E3%83%B3%E3%83%80%E3...