Spirits is more than a jewel in the rough. It is the rough of a jewel. By this, I mean to say that through its hard-won journey Keith Jarrett has peered into the heart of darkness that is life and compressed it into a diamond so honest that no amount of polishing will wear away its blemishes. Recorded at his home studio, then post-processed by ECM engineer Martin Wieland, this is a most personal album of boundless expression. Then again, so is every Jarrett album. The difference is in the instrumentation: an unusual array of flutes, keys, and percussion, overdubbed in various combinations and densities (Jarrett even picks up a guitar, which he treats more like a sitar). Jarrett also sings, wails as if in and of the earth, finding in Nature a single feather plucked from nowhere. Bird-less, it has no recourse to flight, and can only call to a sky it will never know.