Listen to 417 Hz Deep Focus online. 417 Hz Deep Focus is an Instrumental language song and is sung by Brainwave Harmony. 417 Hz Deep Focus, from the album Brainwave Study Harmony - 417 Hz Binaural Beats Study Music For Concentration and Deep Focus, was released in the year 2025. The duration of the song is 3:12. Download Instrumental songs online from JioSaavn.