P422021 Pirastro Tonica viola string set medium P422121 Pirastro Tonica viola string A-1 medium P422221 Pirastro Tonica viola string D-2 medium P422321 Pirastro Tonica viola string G-3 medium P422921 Pirastro Tonica viola string C-4 medium P422111 Pirastro Tonica viola string A-1 soft P422211 Pirastro Tonica viola string D-2 soft P422311 Pirastro Tonica viola string G-3 soft P422911 Pirastro Tonica viola string C-4 soft P422131 Pirastro Tonica viola string A-1 thick P422931 Pirastro Tonica viola string C-4 thick P422161 Pirastro Tonica viola string A-1 scale 40 cm