[quote name='Bassassin' timestamp='1426701260' post='2721035']
I played bass for two years before picking up a guitar. I wanted to learn guitar as a tool for composition, and have managed to achieve a good enough standard to be able to play whatever's in my head. I don't rate myself as a guitarist (certainly wouldn't dare play it live), but all the guitarists I've worked with have been surprisingly complimentary about my playing.
Whether or not it would benefit [i]every[/i] bassist to learn a bit of guitar (or other chordal/melodic instrument), I don't know. If you're content playing covers, arguably it's academic whether you understand why you're playing what you're playing. As has been mentioned, a basic knowledge of drums might be more use, certainly for encouraging cohesive playing.
Jon.
[/quote]
I watched an interview with Billy Sheehan recently.
He said pretty similar, you should learn guitar to compose songs on.