I am watching this video, and I can hear a bass line but there seems to be no bassist. Was it the keyboardist who played the bass line too, or it is only that the bassist did not fit the video screen? Was anyone present to confirm?

I am watching this video, and I can hear a bass line but there seems to be no bassist. Was it the keyboardist who played the bass line too, or it is only that the bassist did not fit the video screen? Was anyone present to confirm?