Starting with its sound spectrum, this A-string has nothing in common with the traditional steel string. It sounds rounder, more colourful and very voluminous. Combined with the synthetic core Perpertual G- and D-strings, this new A offers an organic transition with the D-string. Any fear of increased pressure on the instrument due to the use of a steel A-string is unfounded when using the steel-A Perpetual; this A-string does not burden the body more than the synthetic core A-string.