Pirastro Perpetual provides a large sound volume and carrying power combined with a precisely focused sound projection. The clarity of its sound is balanced with an abundance of colors. Its vibrant tone attack and optimal string response seamlessly complement Perpetual's sound qualities from extreme fortissimo to the most sensitive whisper. The innovative core material allows a comfortable smoothness during legato, shifting, string crossings, double stops and chords. The extended reverberation of the Perpetual brings forth an exuberant luster. An extreme tuning stability is reached immediately after stringing the instrument.