Kronos Quartet: Making free music for the future
21 March 2017 Last updated at 00:34 GMT
For more than 40 years, the Kronos Quartet, a string quartet based in San Francisco, has been entertaining audiences worldwide.
Now they are commissioning fifty new pieces - 25 from women and 25 from men - to entertain and help the next generation of musicians learn from the best, by sharing the scores online for free.
Produced by Bill McKenna
Shot & Edited by Felicia Barr and Bill McKenna
Special Thanks to Carnegie Hall, Washington Performing Arts and Sixth & I