Thomastik STRINGS ALTO SPIROCORE SPIRAL CORE MEDIUM S24
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Manufacturer Information
Thomastik
https://www.thomastik-infeld.com
info@thomastik-infeld.com
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GEWA music GmbH
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Tungsten in Modern Luthiery: A Popular Choice for Precision
Tungsten winding has become standard on many high-end viola strings due to its high density. This characteristic allows for a string that maintains a good balance between sustain, projection, and control, while promoting a stable feel under the bow. Combined with a twisted core, this design aims for reliable response and better sound clarity, especially in fast or finely articulated passages.
For Which Violist and Styles?
This 4/4 viola string is particularly suited for intermediate to advanced violists seeking better tone control and more precise dynamics than entry-level strings. It fits very well in orchestral, chamber music, and classical repertoire contexts, where definition and sound sustain are essential. It can also meet the needs of violists who want a more responsive string to work on intonation, attack, and bow stroke stability.
Sound Characteristics
The tungsten winding tends to provide a more "centered" sound sensation: the attack may seem clearer, the response more immediate, and the projection easier to control, especially in the viola's mid-low range. The twisted core contributes to a certain suppleness under the fingers and a good dynamic range, which helps shape the sound (stable pianissimo, gradual crescendos, cleaner détachés). The desired result is a string that retains richness while improving precision and sustain during bow changes.
Recommended Compatible Accessories
To optimize lifespan and response consistency, a chromatic tuner (or tuning app) and a soft cloth to wipe the string after playing are reliable and universal choices. A light application of graphite (pencil) to the nut and bridge notches, done carefully, can also reduce sticking during tuning.
Technical specifications
| Type of cord attachment | Loop end |
| Category | Alto |
| Draw | 4/4 |
| Nbr of strings | 1 |
| Spun | Tungsten |
| Material | Twisted core |
| Number of Strings | 1 |
| Winding | Tungsten |
| Gauge | 4/4 |
Questions frequently asked
Is the Thomastik Spirocore C tungsten string suitable for a 4/4 viola?
This string is designed for a 4/4 viola and corresponds to a C string only. Its loop-end attachment must be compatible with the instrument's fine tuner or tailpiece.
What sound does a tungsten wound C string produce?
The tungsten winding promotes a focused sound and a clear attack in the mid-low register. Projection remains easier to control under the bow.
For which level and repertoire is this string suitable?
It is intended for intermediate to advanced violists. Its stranded core aims to provide a reliable response in classical repertoire, both orchestral and chamber music. The precision of dynamics can facilitate intonation work and bow changes.
Does this C string have a stranded core?
The core is stranded and the winding is tungsten, a construction designed to preserve flexibility under the fingers and stability of response.
What accessories should be used with this loop-end viola string?
A chromatic tuner and a soft cloth allow for checking tuning and wiping the string after playing. Graphite carefully applied in the notches of the nut and bridge can reduce sticking during tuning.



