Like Matt back in 2009 I am very keen to learn about the origins of Rug Muire Mac Do Dhia.

Also, any authentic performance tips? I play this on mandolin and, better, on octave mandola. I play it, with great difficulty, holding an A5 chord throughout. I could make life easier by retuning but I condiser that cheating! For fun I also play it in parallel fifths, which simply means barring across two courses.