Aromatherapy, the quiet moments of classical music. And in the fourth volume, Music of the Night, there's the 'Barcarolle' from Offenbach's 'Tales of Hoffmann', slow movements from String Serenades by Mozart, Dvorak and Suk, and of course, Chopin's night music, celebrated by his popular D flat major Nocturne, Op. 27 No. 2.