D3: Hiromi Uehara - Spiral.
Did you seriously expect anyone to know that one?
Shit, sorry for putting the album on there. I don't know who plays this game, but I know at least a few other prominent posters are familiar with her albums. Her videos have gone around this site and fiveeights over the years and a few of us pick up her albums on release. There's usually a small thread when she releases a new album, and it isn't always created by me. I also dropped a few hints early search for my top artists in case people didn't know her, she'll be mentioned every time.
Damn you went deep into the vault with a lot of these.
I didn't mean to make it this hard, most of these are albums I really love. I haven't really built my library from recommendations on this site, so I'm a little out of touch for how well known anything is. I tried to pick bands artists I know have been talked about or are prominent in their scene. I feel bad some of these were hard, I thought more would be pretty easy.
In fact, I thought the last one would be too easy. The album had it's own thread when it was released and still gets mentioned. A quick search of the album title brought up 8 or 9 different posters mentioning the album. I dropped an earlier hint that one of these albums was by an artist that goes by two initials. That's binary
for the initials.