So cool to see Brian playing WIBN on the bass. That's a tricky line for any bassist to nail, let alone compose, so this clip (among others) show that Bri was not only an awesome composer, but quite the instrumentalist. Even though the quality isn't A+, you can see he's playing the correct bassline (with almost 100% accuracy) by the way his hands move around the fretboard.
Agreed 100%