So at school I have to play part of the song les toreadors for a chair test and I want to sound good (of coarse) it all started when I had to play a song with my bass ensemble and the judge said we could use more vibrato (I thought my tone was very unconfident sounding that day) I used to only only play vibrato on whole notes and half notes just anything I had to hold out. I wanted to try vibrato on quarter notes and all those short notes I tried and wasn't the best at it. Should I use vibrato a lot? Or am I doing just fine? Thanks!