D'Addario H413 MM Viola Strings

Helicore Viola G String: Stranded Steel Core for Clear, Warm Tone

The D'Addario Helicore Viola Single G String, Medium Scale, Medium Tension (model H413 MM) is a replacement G string built around a multi-stranded steel core rather than a traditional solid steel or gut core. This stranded construction blends strength with flexibility, giving the string a smaller overall diameter and a fast bow response that speaks immediately under the bow. Silver winding over the steel core produces a clear, warm tone that works across classical repertoire, fiddle styles, and crossover genres. Sized for medium-scale violas with a body length of 15" to 16" and a playing length of 14 1/8 inches (360 mm), this G string is the right choice for players who want a versatile, easy-playing replacement that holds pitch and settles quickly. Each string ships in a uniquely designed sealed pouch that protects against corrosion between sessions.

Technical Specifications

• String Type: Single G string — replacement string for viola
• Core: Stranded steel — multi-wire cable core for flexibility and quick response
• Winding: Silver wound — silver winding over the stranded steel core
• Tension: Medium — optimized for the majority of viola players
• Scale: Medium scale — fits violas with 15"-16" body length
• Playing Length: 14 1/8" / 360 mm
• Ending: Ball end — fits standard viola tailpieces
• Item Weight: 9.07 g
• Model Number: H413 MM
• Country of Manufacture: USA

Who It's For

The Helicore Viola G String is the right choice for viola players who need a versatile replacement string that performs across classical, folk, fiddle, and crossover styles without demanding constant retuning. Its stranded steel core and quick settling time make it well suited to students and advancing players who want immediate bow response and stable pitch during practice and performance. Medium tension is the most popular option and works on the majority of medium-scale violas, so this string suits players who haven't yet explored custom tension setups. Those who prefer a brighter, more focused sound with strong projection will appreciate the silver winding, while players seeking a darker, more traditional gut-like warmth may want to sample it before committing to a full set. The ball-end fitting and individually sealed corrosion-resistant packaging make it a convenient single-string replacement for any Helicore-equipped viola.