Larsen Virtuoso Soloist viola C strings have a moderate tension capable of rich, nuanced sound. They were developed as an extension of the success of the Larsen Original viola A string. Available in a medium gauge with a ball end, Virtuoso Soloist C strings are more focused and allow the instrument to produce a greater volume. They fit 15" to 16-1/2" instruments, and are made of a multi-filament core precision-wound with silver.