These A-Alto Viol gauges assume a vibrating string length of 48cm. A-Alto ViolGut String Set Gauges A-Alto Viol a-1 Gut Light 0.52mm Light+ 0.54mm Medium 0.56mm Medium+ 0.58mm Heavy 0.60mm Heavy+ 0.62mm A-Alto Viol e-2 Gut Light 0.70mm Light+ 0.72mm Medium 0.74mm Medium+ 0.76mm Heavy 0.78mm Heavy+ 0.80mm A-Alto Viol b-3 Lyon Light 0.96mm Light+ 0.98mm Medium 1.00mm Medium+ 1.02mm Heavy 1.04mm Heavy+ 1.06mm A-Alto Viol G-4 Pistoy Light 1.22mm Light+ 1.24mm Medium 1.26mm Medium+ 1.28mm Heavy 1.30mm Heavy+ 1.32mm A-Alto Viol D-5 Gut/Silverplate Light 0.86mm Light+ 0.88mm Medium 0.90mm Medium+ 0.92mm Heavy 0.94mm Heavy+ 0.96mm A-Alto Viol A-6 Gut/Silverplate Light 1.12mm Light+ 1.14mm Medium 1.16mm Medium+ 1.18mm Heavy 1.20mm Heavy+ 1.22mm A-Alto Viol a-1: Treble Gut / Single-Length, 48"/120cm A-Alto Viol e-2: Treble Gut / Single-Length, 48"/120cm A-Alto Viol b-3: Lyon Gut / Single-Length, 48"/120cm A-Alto Viol G-4: Pistoy Gut / Single-Length, 48"/120cm A-Alto Viol D-5: Gut/Silverplate-Wound / Single-Length, 32.75"/81cm; Knot to Stocking, 27"/69cm; Stocking, 5.5"/14cm A-Alto Viol A-6: Gut/Silverplate-Wound / Single-Length, 32.75"/81cm; Knot to Stocking, 27"/69cm; Stocking, 5.5"/14cm String Material: Beef Gut, Silverplate Wire String Options: Ball End, Varnish Tuning Designation: a=415 Plain gut strings come with unknotted ends. 3-D Printed Ball Ends may be added for an additional charge. Instructions on how to tie a string knot are on the back of each package. Gut/metal-wound strings come with a 3-D Printed Ball End. Plain gut strings are available with a natural or varnish finish. Natural strings are hand-rubbed with a light oil. Varnished strings have three coats of finish before being hand-polished with the oil. Tuning ConsiderationsGamut Academie Gut Alto Viol Strings are designed for Baroque instruments by those musicians playing historical performance practice at a=415, and are perfectly suitable for modern a=440 practice, but the result will be a little bit more tension at a=440. Technical ConsiderationsTreble Gut is processed to be a little harder than the other kinds of gut. The string also has a lower twist of about 15 degrees. This construction gives it the strength and resistance it needs to stand the strain in the treble register. The color ranges from clear white to opaque yellow. The Lyon-style of gut string is a high twist, single spin construction that offers a tone that is full and warm with a powerful fundamental and complex, pleasing upper partials. The color tends towards opaque light to medium yellow. Pistoy Gut strings are made of three strands of gut twisted in one direction, and then the three combined together by twisting in the other direction in rope fashion. The results is a very flexible string with a quick response and a full, round sound. The color ranges from clear white on thinner strings to opaque yellow on thicker strings. Gut/Silverplate-Wound strings feature a gut core with silver-plated copper wire wound onto the gut in tandem with a thin silk layer between the core and the wire. These are our standard recommended gauges for this instrument. For gauges outside of this range, see our Custom Gauged Strings section. All Gamut string set prices are based off of the individual string prices; there is no penalty for ordering strings à la carte. Historical ConsiderationsOne of the most common wires seen on historical strings is silver-plated copper. Before the advent of electroplating, wire was plated with silver through a chemical process, and there are extant strings of this type that were made for the violin family and keyboard instruments. The wire we use, like the historical examples, is left round on the core. If the wire were polished the plating would be removed. Further ReadingViola da Gamba / ViolsEarly Music / Historically Informed PerformanceHistorical String-Making Care and Cleaning of Gut Strings String Calculator