Listen to Harmony online. Harmony is an English language song and is sung by Deep Sleep Music Maestro, entspannungsmusik and Exam Study Classical Music Orchestra. Harmony, from the album Sleep If You Want to - the Essential Soundtrack for Your Power Naps and Instant & Restful Deep Sleep, was released in the year 2019. The duration of the song is 3:58. Download English songs online from JioSaavn.