It’s more looking at the other musician’s fingers in the case of a string quartet (or when I played in rock groups as a bassist, I would have my eyes on the dru

It’s more looking at the other musician’s fingers in the case of a string quartet (or when I played in rock groups as a bassist, I would have my eyes on the drummers hand and foot on the kick drum pedal). Likewise, when I’ve done orchestral work, I generally had one eye on the music, one eye on the conductor and one eye on the principal's bowing.