Witch Trial - S2-E1
Visible crew/equipment: While the Book of Shadows flips its pages the sisters enter the attic, and after Piper asks how the book does that, in the next shot the feet of a crewmember can be seen moving quickly out of shot, at the bottom left side of the screen. (00:03:15)
Answer: "Hush, Hush, Hush" Paula Cole.