[purlieu]

Miscellaneous is when the various algorithms on the site can't work out whether it's an album or EP or compilation (if none are tagged). Atom is so long that it got listed automatically as album.

That said there doesn't seem to be anywhere that the band have stated they are EPs, so by Discogs rules then they shouldn't be tagged as that. The Sonar link, I think, was written by the promoters. The only thing the band have called them is 'episodes'. So, technically, they shouldn't be listed as EPs.