Misha Alperin has been something of a shadowy presence in the annals of ECM. His previous albums—namely, Wave Of Sorrow, North Story, and First Impression—marked him as an enigmatic musician of sparse yet effective language, at times of humor and gaiety. But if you want to know how the Ukrainian-born pianist’s heart beats, the forms his dreams take, let At Home be your looking glass. The aching lyricism of the title track, which opens this collection of improvised pieces, is all you need to know what’s going on: a private, reflective session surrounded by Alperin’s most familiar things. Recorded at his home in Norway, where he has lived for the past two decades, the program unfolds in a mosaic portrait of the artist in various stages of emotional awareness.