P412021 Pirastro Tonica violin string set medium P312421 Pirastro Tonica violin string E-1 medium P312721 Pirastro Tonica violin string E-1 medium P312821 Pirastro Tonica violin string E-1 medium P412221 Pirastro Tonica violin string A-2 medium P412321 Pirastro Tonica violin string D-3 medium P412821 Pirastro Tonica violin string D-3 medium P412421 Pirastro Tonica violin string G-4 medium