I did manage to restore those 2 albums (El Oso and One Step Ahead of the Spider). I've determined, though, that around a hundred random scrobbles from my "Big Playlist" on shuffle were lost, and it would be ridiculous to try and manually do those, so this may not be a completely accurate representation of my music this week.
Soul Coughing - El Oso
mewithoutYou - Pale Horses
MC 900 Ft. Jesus - One Step Ahead of the Spider
Lemon Demon - Nature Tapes
King Gizzard & The Lizard Wizard - Gumboots Soup
Ladytron - Light & Magic
Lemon Demon - Spirit Phone
mewithoutYou - Brother, Sister
They Might Be Giants - Mink Car