Family Radio.

[cupid04]

I often listen to family radio late at night because the music is so relaxing.
There is a programme called 'Nightwatch' that starts 1.30am and there is a
piece of music I've been trying to identify, without any success. It introduces
the programme 'nightwatch', but I've never heard it in full. I'm sure it's a
classical choral piece [not just a radio jingle]. I hope someone can help me.
I will be most grateful.

[hc4361]

What station is it on?

[cupid04]

I can only access it on Sky [0159] Family radio, is the name , it's American.