Help reading Japanese

http://ja.wikipedia.org/wiki/%E3%82%89%E3%81%8D%E2%98%86%E3%81%99%E3%81%9F_%E3%83%9F%E3%83%A5%E3%83%BC%E3%82%B8%E3%83%83%E3%82%AF%E3%83%95%E3%82%A7%E3%82%A2

I need to know the artist for track 4, 6, and 10. I was able to find a website that gave me the rest, but for those three it was just "TV Soundtrack"

The lyrics of the tracks 4 and 6 are by
http://en.wikipedia.org/wiki/Aki_Hata

Her official website and blog are:
http://aki-h.net/
http://blog.livedoor.jp/aki_h/

I don't know who "hush-a-bye baby" is.