Listen to The Heart Of Worship - Medium key performance track w/ background vocals online. The Heart Of Worship - Medium key performance track w/ background vocals is an English language song and is sung by Worship Tracks. The Heart Of Worship - Medium key performance track w/ background vocals, from the album Worship Tracks - The Heart Of Worship - as made popular by Matt Redman [Peformance Track], was released in the year 2006. The duration of the song is 5:10. Download English songs online from JioSaavn.