His collaborators have spanned a wide range of musical styles and talents ; among them are PERSON@1 , Yo-Yo Ma , PERSON@2 , PERSON@3 , PERSON@4 , PERSON@5 , PERSON@6 , PERSON@7 , PERSON@8 , PERSON@9 , and the trio ORGANIZATION@1 .

Over the years , he has worked with classical and bluegrass artists such as PERSON@1 , Yo-Yo Ma , PERSON@2 , PERSON@3 , PERSON@4 , PERSON@10 , PERSON@6 , PERSON@7 , PERSON@8 , the members of ORGANIZATION@1 , and PERSON@9 .
