Twenty-odd years ago I used to have to sit up working most of the night quite often. UK radio stations shut down not long after midnight in those days. What could I find to listen to? Not very much. Radio Moscow (earnest but dull) or Voice of America (naked propaganda, just as dull but without the intelligence or intellectual honesty of the Russian service).

What else? The Arabic services. Well, so far as I could tell. I don't understand a word of the languages involved. I do remember the music, though. Reception was not good -it came and went- but it was well worth hearing, and I learned the beginnings of approaches to music that had been outside my experience.

Thanks for the link to this resource. I'll certainly be making use of it.