viola string set, medium, consits of CO-931-M, CO-932-M, CO-933-M, CO-934-M
viola string set, medium, consits of CO-931-MS, CO-932-M, CO-933-M, CO-934-M
viola string A-1, medium, cantiga material, aluminum
viola string A-1, medium, steel, aluminum
viola string D-2, medium, cantiga material, aluminum - silver alloy
viola string G-3, medium, cantiga material, silver
viola string C-4, medium, cantiga material, tungsten
