As a Jazz Bassist, it always comes around in the chord changes, where it's my turn to play a 32 bar solo or a 2 or 3 chorus blues solo. Bottom line, you can play any note you want, but the time has to be perfect! When soloing on the bass , play the notes you would sing if you were singing a solo. It will just sound an Octave lower. For jazz, most solos start with 8th notes, swinging, and then insert triplets here and there and some bent notes super high up on the high g string, then 2 bars before the ending play time to re-establish the groove with the drummer. If done correctly, everyone will think you are Jaco, or Mr. Bigs bass player, Billy Sheenan. Tell your band you want to solo unless you really don't want to solo. Soloing comes easy for me, because I'm a 50 year old professional Jazz saxophonist who has played jazz for 40 years now. I started the bass when I was 13. Performed in the USAF bands for 23 years, and now I have just retired. Believe it or not...
I'm getting more bass gigs than sax gigs... who would have thought ....
Good Luck! "
KING"