No you dont need to know any theory, scales, chord tones etc... But and it's a big but can you hear music and play it back quickly? Are you able to play any musical idea in your head easily? Can your hear chords and play them back? If yes to all these you are in the small percentage in the gifted category. If it is a no then you are like the rest of us and have to work your butt off to become proficient on the bass.
What do you practice or warm up with? Practicing modes, apreggios, chord tones, intervals etc will improve your ear(who doesnt need this?) and make your mind and fingers work together.
What do you practice or warm up with? Practicing modes, apreggios, chord tones, intervals etc will improve your ear(who doesnt need this?) and make your mind and fingers work together.