Complex sentence: Recent international tours have included the "Rising Stars" concert series in Europe and New York, a tour with the Medici Quartet in Greece and the United Kingdom as well as a concert tour with the St Petersburg Philharmonic Orchestra under the direction of Yuri Temirkanov.
Split into simpler sentences: Recent international tours have included the "Rising Stars" concert series in Europe and New York. A tour with the Medici Quartet in Greece and the United Kingdom as well as a concert tour with the St Petersburg Philharmonic Orchestra under the direction of Yuri Temirkanov.