D'Addario J912 SM Viola Strings

Replacement Viola D String for Short-Scale Instruments

The D'Addario Prelude Viola Single D String, Short Scale, Medium Tension is purpose-built as a replacement string for 13-inch violas, the size most commonly used by students and younger players transitioning from fractional instruments. Built around a solid steel core with a ball end and the brand's signature blue silking, this single D delivers the warm tone and reliable bow response that have made Prelude one of the most widely used student string lines. The medium tension offers a balanced feel under the bow without demanding excessive finger pressure, making it well suited to developing technique. Each string is 100% designed, engineered, and crafted in D'Addario's New York facilities, ensuring consistent quality across every replacement.

Technical Specifications

• Number of Strings: 1 (single replacement string)
• String Designation: D
• Scale Compatibility: Short Scale (13" viola)
• Hardness: Medium
• Core: Solid Steel
• Ending: Ball End with solid blue silking
• Compatible With: Viola
• Country of Manufacture: USA

Ideal for Student Violists and Short-Scale Viola Players

The D'Addario Prelude Viola Single D String, Short Scale, Medium Tension is the right choice for student violists who need a reliable replacement D string for a 13-inch viola. It suits school orchestra programs, private studio learners, and rental instrument fleets where individual strings often need replacing before the full set wears out. The medium tension provides a balanced feel that supports bow control development without overwhelming small hands, while the solid steel core and ball-end construction deliver the durability and tuning stability that Prelude is known for. Players seeking a warm, focused tone with consistent response across practice sessions, lessons, and performances will find this single D string a practical and dependable upgrade or replacement.