Hi I am a 45 year old who has fiddled with bass for years. I have a rock background and can play most things by ear. I started to study theory and re dedicate myself. I budget 1 and a half hours in the morning for theory and usually 1 hour at night for transcribing songs. my goal is to be able to go to open mic night at the blues Club and sit in with songs I don't know. This is my weakest point. How do I best divide that morning time to learn improvisation? I have a drum machine and lots of books. Thank you.