This is an LP targeting audiences of children (and parents) dating roughly from 1960.
Who else knows of it?
I grew up with it.

The featured artists are Martyn Green and Julie Andrews.
Together they sing nursery rhymes and some familiar children's songs,
and there are a few things that may have been written for the session.

One of the studio musicians is Moondog.
I think the record label might have been EMI/Angel but not certain
(I'm in the US; was it something like Parlophone in the UK?)

Some of the 'numbers' are
the letters of the alphabet
the days of the week 'How many days has my baby to play'
the months of the year 'Thirty days hath September'

'Hot boiled beans and very good butter...'

...shoot, my memory isn't what it was.
I will have to go look the album up.