Llyfr Glas Nebo - Listen on Radio Cymru

I know things on BBCs page usually are not permanently available but how the things are with podcast on BBC Sounds?

Oh, and obviously the app is Geo restricted because i can’t find it in Google Play store. What I find is BBC iPlayer Radio adn BCast Listening BBC podcasts. Is this any useful? I’ll search on TuneIn app later if maybe they offer this there also though …