Hiromi has promised a solo release every decade, so here's the follow-up to Place to Be. Then, as now, her signature sounds remain: the classical infrastructure, that locked down left-hand, her love of Corea's fantasias, her gamine charm steeled with ferocious tempos. She also likes a concept. As you may guess from its title, Spectrum is themed around colour, be it the angular opener ‘Kaleidoscope’, or a romantic take on Lennon and McCartney's ‘Blackbird’. There's now a confidence to use space and gentler tones, as on ‘White Out’, which starts like Hiromi's own ‘Moonlight Sonata’ before embracing cascading runs and cinematic crescendos. Hiromi also swings more relaxedly than before, and the gamut of her influences climaxes with the remarkable ‘Rhapsody in Various Shades of Blue’. As you'd expect she revs up the Gershwin themes and lush chords, but over the next 20 minutes she breaks it down into various themes and improvisations: she draws deep on Hancock, Jarrett and Corea, those Milesian pianists she so respects while meditating on Coltrane and, um, The Who. And at times she's just Russ Conway, out to entertain and bring a smile to your face. Okay, she's more stylist than innovator, but Spectrum, in all its hues, remains her most accessible work.