The Thomastik Rondo RO21 viola A string was designed to support and enhance the performance of soloists and advanced musicians offering power, great projection and a rich sound that is suitable for all musical styles. The Rondo viola A string features a unique tonal intensity and vast dynamic range with a reliable response. Designed to tonally enrich old and modern instruments with an intense depth, brilliant contour and sweetness mostly associated with old Italian instruments, the string’s immediate bow response supports this focus on all dynamic levels at various bowing speeds, bow pressures and contact points. This leads to a powerful presence, giving the player confidence when projection and volume need to be delivered with ease.