Obligato Strings for Viola 15"+Obligato Strings for Viola Pirastro Handmade in Germany As a result of the quality of both their strings and rosin, Pirastro has become a byword for a sound which is both beautiful and reliable. As a result, a great number of classical string musicians recommend Pirastro strings; their tonal flexibility and expressive power allow each musician to create their own unique sound and to show their own instruments to their very best advantage. The tonal