Here’s the review from Keyboard Magazine of A Piano:

A Piano: The Collection
Tori Amos

By Michael Gallant | October 2006

Five CDs and 86 tracks strong, A Piano: The Collection is both an excellent canon of Tori’s compositions and a fitting monument to the piano-woman’s momentous musical career. The box set ranges from the Little Earthquakes songs that made her famous — “Silent All These Years,” “Me and a Gun,” etc. — to her most recent work on Beekeeper, and features many treasures in between.

Always deeply emotional, the material in A Piano: The Collection journeys from dark to playful, heart breaking to downright sexy, and Tori’s performances are in top form throughout. This isn’t just a repackaging of classic material, though: “Leather” and “Jackie’s Strength” are among 15 alternate mixes included, and three demo tracks offer the rare chance to hear Tori mid-creative process. For the diehard fan and aspiring piano songwriter alike, A Piano: The Collection is a great listen and an invaluable resource. (Rhino, www.rhino.com)
—Michael Gallant

I could go to Amazon or Wikipedia and come away with something more insightful. Read this one instead.