Ludovico Einaudi’s winter walks reach their third day, the pianist’s shifting perspectives maturing and coming into focus: “Low Mist” and “Gravity” still display a hesitancy as he ventures gently into the wild, his “Golden Butterflies” now fluttering more freely in the low-lying sun, the music softer, less anxious. The “Full Moon” watches gently over the frozen landscape, the “Cold Wind” biting, challenging. Einaudi paints stunning, vivid images marrying urgent crescendos with hypnotic stillness, piano and strings melting together like virgin snow in the midday winter sun. He has only just begun his journey, but already his musical responses are altering—slowly but surely.