Listen to Solfeggio Frequencies online. Solfeggio Frequencies is an Instrumental language song and is sung by Hypnosis Therapy. Solfeggio Frequencies, from the album Hypnosis Therapy: Music for Anxiety and Depression, Relaxing Music for Stress Relief and Sleep, was released in the year 2021. The duration of the song is 2:21. Download Instrumental songs online from JioSaavn.