Listen to Solfeggio Relaxation online. Solfeggio Relaxation is an Instrumental language song and is sung by Binaural Beats Sleep Aid, Alpha Waves for Sleep and Sleeping Music. Solfeggio Relaxation, from the album Sleep Theta Waves: Background Sleeping Frequenices, Falling Asleep Fast and Sleep Aid, was released in the year 2025. The duration of the song is 4:24. Download Instrumental songs online from JioSaavn.