The name of 17th-century violin maker Antonio Stradivari - or Stradivarius as he is usually known - is one that sends shivers down the spine of music lovers the world over. During his lifetime Stradivari made over 1,000 instruments, about 650 of which still survive. Their sound is legendary and for any violinist the opportunity to play one is a great privilege.Clemency Burton-Hill indulges in her lifelong passion for the instrument as she explores the mysterious life and lasting influence of Stradivari - through four special violins on display at this summer's Stradivarius exhibition at the Ashmolean Museum in Oxford. She is joined by 2002 Young Musician of the Year winner Jennifer Pike to put some of the violins in the exhibition through their paces.