So I'm new here (posted in the beginning of the year but then mostly stayed away to avoid the "beyond" spoilers from the I&W tour), but this thread looked interesting so I checked it out. Could it be that you have never scrobbled Katatonia? I would highly recommend them as your 2000th artist. I would go with the latest album, The Fall of Hearts, just because they have such a large discography that it might be better to jump in with where they are now and then if you like them, work backwards. It's also arguably the proggiest. On the other hand, The Fall of Hearts perhaps requires more time to get into than some of their more immediate stuff, so I could point you to some popular tracks instead - Forsaker, July, My Twin, Lethean, Leaders, Evidence, Buildings, Criminals, Day and Then the Shade, Soil's Song, etc.