Listen to Delta Waves for Deep Focus online. Delta Waves for Deep Focus is an Instrumental language song and is sung by Jonathan Working. Delta Waves for Deep Focus, from the album Focus & Work: Binaural Beats Study, Study Alpha Waves, Ambient Alpha Waves for Concentration and Learning Music for Better Memory and Focus, was released in the year 2021. The duration of the song is 2:01. Download Instrumental songs online from JioSaavn.