Well guys my cousin is going to my local music store to learn some guitar. well i thought i should learn some bass. Turns out the teacher there said that he would teach me some guitar music theory and it would be just the same for my bass except for the chords.

Is this even possible?
Well, music theory is theory for all music, but when it comes to things like chords you might think differently if you're a bassplayer. I guess, if I get it right, as a bassist you might focus more on the notes of the chords to make a basspart rather than the full chord...or something.