I've been playing bass guitar for over 20 years now (god i'm getting old) in played in all sorts of bands in all sorts of styles, including pop, blues, power metal, soul, jazz...
But my biggest dream of all came true when I started learning to play the double bass in my mid-twenties. I have played in several symphonic orchestra's since then.
I also play a bit of piano, but don't really excel at that. I can play the first page of my favorite piano concerto's though :)