I do wish there was more background music for the live-action Bebop, though. They've got Yoko Kanno on board but it seems like they're mostly just recycling stuff from the old OST (which is great, don't get me wrong!) and not doing whole long sequences composed to the music like they did in the animated show.
They also tend to use short bursts of music (esp old OST) for emphasis and to flag certain things, e.g. a certain song being used for a set of recurring flashbacks.