Exclusive GVIDO Clinic with Marek Szpakiewicz @ Metzler Violin shop Posted by GVIDO Blog on December 1, 2018December 1, 2018 in Event You are Invited to the GVIDO Clinic at Thomas Metzler Violin Shop. We are honored to team up with Thomas Metzler to bring GVIDO closer to you! There will be a hands-on session for those who wish to experience GVIDO…