Summary: I was telling you about Keith Norman MacDonald. He published the book Puirt-a-Beul: or Songs for Dancing as Practised from a Remote Antiquity by the Highlanders of Scotland in 1901. Was Keith Norman correct? Are puirt-à-beul very old? It’s difficult to be certain. Ruairidh looks at these questions and others in this week's letter. Accompanying text is available in both English and Gaelic at bbc.co.uk/litirbheag
