Viola

https://www.facebook.com/share/p/1BE54kVpEm/?mibextid=wwXIfr

https://www.facebook.com/share/p/1FAmwaBMGc/?mibextid=wwXIfr

これまでご紹介してきた主な製作者

Alfred Gianotti Milano

Stefano Conia cremona

Daniele Canu pesaro

Bernd Hiller markneukirchen

George Craske