Bass guitar

If you've got nice long fingers and a big handspan it will help you a lot.

For those of us less well endowed in that department a full scale bass is a form of medieval torture!

So much of the success of playing the bass is to do with timing and rhythm it is true.

Mark

Playing bass was what made me start to learn chord theory properly. As a few people have said already, bass can be very simple at the start because all you need to do is play the root note of the chord. But the really fun part is learning how to make the bass lines more interesting. Try listening closely to what's going on in the bass of whatever you listen to - it'll help to give you ideas of what's possible. Then look up videos of some of the top bass players: people like Nathan East, Victor Wooten and Tal Wilkenfeld. It'll help to give you a sense of different styles and techniques, and maybe give you a taste for the kind of sounds you want to make.