The post for 10 May 2016 on this thread, singles out the sean-nós song "Eibhlí a Rúin" which was re-issued on the Gael Linn compact disc anthology, "Amrháin Ghrá," in 2011.

The recording of this song started out in the world as a 78 RPM vinyl single issued by HMV. Máire Ní Scolaí is the singer, Duncan Morrison the pianist.

Thanks to Reg Hall's encyclopedic book about Irish musicians in London especially in the 1900's, I have an exact date for the recording.

"Eibhlín a Rúin" was recorded in London for HMV on 20 August 1938, when Ní Scolaí would have been twenty-nine years of age.