The Tokyo-born pianist plays three shows in Boca Raton in support of her latest release, Euphoria (Shanachie). Veteran Japanese keyboardist and composer Keiko Matsui’s 30-album-deep recording career has mostly traversed New Age and smooth jazz sounds, as exemplified by her 2011 collaboration Altair & Vega (eOne) with fellow smooth piano practitioner Bob James. But look deeper and you’ll...