Greta Ann used to sing at the Marquee Club in London, she made a record on the Pye label, Sadness Hides the Sun..
The B side features "The Children's Song"
You can have a listen here.. https://www.youtube.com/watch?v=n_Umog6Uz_E
This is the B side.. https://youtu.be/huZ9-oGAzXU
Greta also used to pop down to the Cavern in her lunchtime, see if you can spot her on this clip..!