Thanks to Michael Flowers for this.

Something appears to have happened to BBC genome overnight. If you type in a name you are interested in it now provides links to audio files of all the related programmes currently available. This results in programmes which didn’t always come up when searching on BBC Sounds. As an example, last month I compiled a list of Tolkien related programmes for the Tolkien Society in lockdown, now if you put in “Tolkien” you are provided with links to programmes which I failed to locate last month on BBC Sounds.

https://genome.ch.bbc.co.uk/explorer/search/0/10?q=Tolkien