Ludovico Einaudi returns to the piano, this time alone, for his first solo piano record of new material in 20 years, since I Giorni in 2001. Underwater was written with "songwriting, not composing. A fresh approach" in mind, which can be heard in its memorable melodies. Ludovico says "a song is like a breath, it needs nothing more. The album is a place to freely reflect, a place without boundaries."