Info for the Charater Song Vol 1 CD.
Six Songs with an instrumental version for each song.
http://vgmdb.net/album/50587
http://kancolle-anime.jp/goods/?page=cd
Spoiler for Tracklist fom the above link:
進め!金剛型四姉妹
Performer: Kongou-gata Yonshimai [Kongou, Hiei, Haruna, Kirishima (CV: Nao Toyama)]
Composer: Yuya Saito
Arranger: Yuya Saito
Lyricist: minatoku, Shunsuke Matsui
どこまでも響くハラショー
Performer: Hibiki (CV: Aya Suzaki)
Composer: baker
Arranger: baker
Lyricist: baker
初恋!水雷戦隊
Performer: Naka (CV: Ayane Sakura)
Composer: Hige Driver
Arranger: Hige Driver
Lyricist: Hige Driver
Bright Shower Days
Performer: Fubuki (CV: Sumire Uesaka), Mutsuki (CV: Rina Hidaka), Yuudachi (CV: Yumi Tanibe)
Composer: Takuro Iga
Arranger: Takuro Iga
Lyricist: minatoku, Shunsuke Matsui
二羽鶴
Performer: Dai Go Koukuu Sentai [Zuikaku and Shokaku (CV: Iori Nomizu)]
Composer: Kousuke Nakanishi
Arranger: Kousuke Nakanishi
Lyricist: minatoku, Shunsuke Matsui
Let's not say "good-bye"
Performer: Kanmusu Tokubetsu Kantai [Zuikaku (CV: Iori Nomizu), Kongou (CV: Nao Toyama), Akagi (CV: Saki Fujita), Kaga (CV: Yuka Iguchi), Shimakaze (CV: Ayane Sakura), Fubuki (CV: Sumire Uesaka)]
Composer: Satoshi Hono
Arranger: Satoshi Hono
Lyricist: minatoku, Shunsuke Matsui
I'm mostly looking forward to Zuikaku's and Shokaku's song.
Fubuki is just an awesome song. My personal favourite of the season.
[Edit:]
The OST will have 52 tracks, 98 minutes long
http://vgmdb.net/album/51103