Listen to Where Have All the Gentle Giants Gone online. Where Have All the Gentle Giants Gone is an English language song and is sung by Asperger Beeblebrox, Relaxation & Stress Relief Therapy, A Capella, Reading and Study Music and Acapella. Where Have All the Gentle Giants Gone, from the album Mountain Streams of Consciousness (A collection of New Age, Ambient, Electronic, Acapella, Easy Listening and Classical music), was released in the year 2016. The duration of the song is 3:16. Download English songs online from JioSaavn.