It is true that I am referring to the bluesy theme, but only the version with the piano and saxophone. Of the three 'Sleep my dear' is the correct song, but features only piano and maybe strings. The other two are cool pieces as well but not the song i'm looking for. I own two of the Soundtracks, on the second track there is a song called 'Brick Ballades ~ Houston St.' This is the closest version I can find, but it is a ''remake" so to speak and has different chords and slightly different phrases. There was an album called "Walking Together on the Yellow Brick Road."
According to
http://kiserai.net/bigo/ -
"INTERMISSION: WALKING TOGETHER ON THE YELLOW BRICK ROAD
Shortly after the first season was completed in Japan, a "special episode" of The Big-O was released as a Drama Theater CD. It involves Roger, Dorothy, Norman, Dastun, and Angel all in Roger's place discussing memories and the like. It's unsure as to whether it is meant to be placed into the series as an actual episode, or if it's just a special "what-if" scenario. At any rate, it touches on a few themes that are explored further during season 2, and there is an English translation available at Writer-in-Chief Chiaki J. Konaka's website. Give it a read.
I have the actual CD. It's pretty cool, but probably not worth it if you can't understand Japanese. In addition to the special episode, it has two other songs not found on any other soundtrack CD's: the original mix of "Brick Ballades" and "The Holy Remix.""
That is the cd/song I am looking for and I have been searching for years to no avail.