And that cello line, that's Alisa Weilerstein, the daughter.

NPR: Family Affair, and Dvorak's Invited

With us today are Joshua Bell on violin, Alisa Weilerstein on cello, Sharon Isbin on guitar, and Awadagin Pratt on piano. (Applause.) They are the best in the world, and we're incredibly lucky to have them today.

WHITEHOUSE: White House Workshop: Classical Music

In terms of pure sound, then, there's more focus on exactly what's played, and listening to the intimate dialogue among these three fine musicians, it's clear that cellist Alisa Weilerstein comes from a special family and a special musical circumstance.

NPR: Family Affair, and Dvorak's Invited