"Cat Blues" is a song from the album Cowboy Bebop.
The song featured as some research scientists searched for Ein, as Spike Spiegel walked Ein as bait for Abdul Hakim, and as Hakim talked to his dealer and then a fortune-teller.[1] The song features as Edward harasses Baker Panchorero.[2]
A background version of the song was used during the Radio Free Mars broadcast.[3]