The Tokyo String Quartet and guests from the Yale School of Music will perform a benefit concert for Japan on Monday, April 11 -- the one-month anniversary of the earthquake and tsunami. Hear violinist Kikuei Ikeda talk about staying in touch with family in Japan and the quartet's reasons for presenting the concert. Watch the world-renowned ensemble rehearsing Mendelssohn's Octet alongside the Linden String Quartet, a young, up-and-coming ensemble that studies with the Tokyo Quartet at the Yale School of Music.