Fractale Original Soundtrack
Artist: 相原清乃 (violin player) =
Kiyono Aihara
Source 1 (DrillSpin prolife)
Source 2 (Credited alongside a buch of familiar names)
Artist: 篠崎兄 (violin player) =
Kei Shinozaki
Source 1 (We haven't found a kanji for this artist yet, but his discography and the artists with whom he is regularly associated are clear and unmistakable evidences)
Artist: 川原会美子 (chorus) =
Emiko Kawahara
Source 1 (Facebook account, look at the uploaded photos and other members of the chorus will appear: Noriko Morita, Yuki Sakuraba, Chisato Fukumoto)
Source 2 (Katakana reading of her name, also identified as soprano)
Artist: 森田紀子 (chorus) =
Noriko Morita
Source 1 (Member of the Japan Opera Foundation, her name is written in katakana)
Source 2 (Surely the twitter of this artist)
Artist: 福本知里 (chorus) =
Chisato Fukumoto
Source 1 (Photo uploaded by Emiko Kawahara, with a bunch of other opera singers, Chisako Fukumoto amongst them)
Source 2 (Her own facebook account)
Source 3 (Twitter with updated information, it seems that she's now studying piano in Vienna)
Artist: 桜庭由希 (chorus) =
Yuki Sakuraba
Source 1 (Same photo as before, Yuki Sakuraba amongst them)
Source 2 (Her facebook account, soprano voice)
Artist: 高平祥香 (chorus) =
Sachika Takahira
Source 1 (Same photo as before, Sachika Takahira amongst them)
Source 2 (There's a little interview where she says that she studied in Vienna, although she doesn't mention anything music related)
Natsume Yuujinchou Music Collection - Otonoke no Sasagemono
Artist: 青木直之 (bassoon player) =
Naoyuki Aoki
Source 1 (Credited as member of a rather obscure ensemble, but in the profile it says that he is a regular member of the New Philharmonic Orchestra Chiba)
Artist: 丸山博文 (trombone player) =
Hirofumi Maruyama
Source 1 (MPN to the rescue)
BACCANO! ORIGINAL SOUNDTRACK SPIRAL MELODIES
Artist: 片桐幸雄 (guitar player) =
Yukio Katagiri
Source 1 (His personal site with useful info)
Source 2 (Photos of him during a live performance)
Artist: 齋藤麻衣 (viola player) =
Mai Saito
Source 1 (Her profile on the viola website of japan)
Source 2 (MPN confirming the reading)
Symphonic Suite the Another Story of Shining Force
Artist: 福島あきら (violin player) =
Akira Fukushima
Source 1 (MPN as usual)
Source 2 (DrillSpin profile)
Artist: 井出修三 (viola player) =
Syuzo Ide
Source 1 (Credited as member of 'Pan Strings'. I am quite sure that “Pan In Rin”, the first violinist, it’s a very erroneous romanization of Yinlin Pan, credited on the two shining force symphonic albums)
Magical Girl Lyrical NANOHA The MOVIE 1st Original Sound Track
Artist: 田代藍 (violin & viola player) =
Ai Tashiro
Source 1 (Drillspin profile with a link to her blog)
Source 2 (MPN)
Source 3 (Credited as violist alongside Tomomi Tokunaga, performer on the Nahona album)
TV ANIMATION DEMONBANE Soundtrack
Artist: 斉藤幹夫 (trumpet player) =
Mikio Saito
Source 1 (Web with interesting info and readings of various musicians, Mikio Saitou amongst them)
Source 2 (Credited in romanized form. Btw, Tomomi Tokunaga is credited on both albums)