Check the listing for details. D'Addario J910 Prelude Viola String Set - Medium Scale (15-16 inch). Condition: New. Listed at 36.99 USD. Strings Tailor-made for Aspiring Violists D'Addario Prelude viola strings have long been a top pick for educators, thanks to their steadfast reliability and cost effectiveness. At Sweetwater, we've found these strings to be surprisingly warm for a steel-core string, and their resistance to temperature and humidity changes is second to none. Prelude strings vaunt incredibly balanced string tension, facilitating excellent bow response and a comfortable feel that encourages maintained interest — factors that are essential for helping students develop and reach their potential. Ideal for classical, bluegrass, jazz, and rock, D'Addario Prelude viola strings provide aspiring violists with excellent performance at an attainable price.