I have The Very Best of Keiko Matsui (GRP), and there are several tracks that I really backgommon.review like listening to Acoustic Alchemy in some of her. Keiko Matsui - The piano (Full album - relaxing music) . Isn't this just the best relaxing music you have ever. I just picked up my first Keiko Matsui album, the re-mix of Dreamwalk, and I love it. She has many other albums out and I was looking for.