Hey, I have been playing bass for roughly 8-9 years but I have taught myself entirely, through books, scales and learning songs etc. I'd say I have a good feel for the instrument but I want to take my playing to higher level. Has anyone done bass grades and are they worth doing? If not then perhaps someone could share how they learnt? Right now I am a student so I'm not really in a position to pay for regular lessons. Any thoughts appreciated. Thanks!