Question: On the Nov. 17 episode of Alias, there's a beautiful song playing when Sydney goes to visit Vaughn in the hospital. What was the song, and who performed it? Thanks. — Bobbie, Princeton, N.C.

Televisionary: Though I've vowed to cut down on the what-was-that-song questions in this column, once again my resolve fades in the face of a reader — well, readers, since many of you asked — in need of my help.

The song in question is called "Slumber My Darling" and it's performed by cellist Yo-Yo Ma and singer Alison Krauss. You'll find it on the CD Appalachian Journey, a disc from Yo-Yo Ma, Edgar Meyer and Mark O'Connor that blends classical and folk influences.