Listen to 963 Hz 639 Hz and 396 Hz online. 963 Hz 639 Hz and 396 Hz is an Instrumental language song and is sung by Relaxed Mind. 963 Hz 639 Hz and 396 Hz, from the album Shine at Night, was released in the year 2023. The duration of the song is 7:01. Download Instrumental songs online from JioSaavn.