Yes, we did Singing Together too. (Devon, UK, 1960's). I remember some really unusual songs being included. In the third year of primary school (age 7 - 8) we had an excellent teacher who made us ENJOY our music, and taught us to read music, a thing which I shall ever be thankful for. The teaching at grammar school level (age 11 - 18) was not as inspiring, despite having wonderful facilities, virtually any instrument you cared to play, soundproofed practice rooms, recording studio....the teaching was stiff, formal and no fun at all. I'd discovered folk clubs by then but didn't seem to be able to make the two connect!
Jo