This deluxe edition is the one to buy, as it also contains a new Ryuichi Sakamoto album called "Out of Noise" which on its own is an outstanding record - quite why it's tucked away as a "bonus" disc here I really couldn't say.
Anyway, disc 1 "Playing the Piano" is what Sakamoto calls his album of "self-covers" done on the piano. The mood is dark, sad, winter melancholy. It's difficult to believe that just one instrument is used throughout - such is the depth of emotion on the LP.
The aforementioned disc 2 "Out of Noise" has, for the most part, a similar mood, although brings in additional instruments and treatments. It's up there with, if not better than, the best works of Brian Eno, Eric Serra and John Beltran. A classic, in fact.
Perfect winter music.