One of my earliest (78s on the Regentone radiogram) musical memories is The Luton Girls Choir singing A Dream of Olwen. Still makes me wet-eyed when I masochistically listen to it - and The Nun's Chorus which I believe was the B side of the HMV record.
Mind you they, my parents, also had C'mon a My House by Rosemary Clooney and I Wanna Say Hello by Sir Hubert Pym.