Pirastro Passione Solo Violin StringsPassione is a powerful handmade gut string for viola. Finely wound and polished, it has a very powerful and brilliant sound. It has great projection, easy response and offers significantly increased tuning stability vs. traditional gut core strings. Features: The sheep gut core of the Passione Solo strings is manufactured, wound and polished in the traditional way, by hand. soloistic tone with strong power and brilliance extended range of dynamics and