I’m an Amateur Musician

How Much Music Theory Should I Know?

I am an amateur rock’n’roll/blues musician. My skill level is best described as mediocre. I am an acceptable rhythm guitarist. I play bass well enough to provide the bottom for a bar band, if one comes calling. My keyboard skills include basic chording, one finger bass movements with my left hand, and minor melodic right hand movements. I can make some acceptable noise on a mandolin and a blues harp-some of that noise is less acceptable.