Vibrato exercise 8: Vibrating Thumb

[@michaelmurphy4794]

I love your lessons, really good and very clear. Thank you.

[@sharonmayhew3711]

The problem I have, is that I have trouble sustaining the vibrato....please help! Thank.
Your lessons are wonderful and much appreciated. Don't stop.

[@sgm2060]

Wonderful!!

[@donnabyrd6368]

I wish this helped me

[@Alexisesav]

excelent!