Listen to I Let A Song Go Out Of My Heart online. I Let A Song Go Out Of My Heart is an English language song and is sung by Mildred Bailey & Red Norvo & His Orchestra. I Let A Song Go Out Of My Heart, from the album It Don't Mean A Thing (If It Ain't Got That Swing) (The Music Of Duke Ellington 1925-1944), was released in the year 2015. The duration of the song is 2:59. Download English songs online from JioSaavn.