Traditional role of the mountain dulcimer.
General mountain dulcimer or music discussions
How I see it is the mountain dulcimer has several traditions depending on where you are on the planet. Here in the U.S., Jean Ritchie is one person whose family story and travels spread awareness there was such a thing as a mountain dulcimer in the central/southern Appalachians. On Jean's album The Most Dulcimer , several different styles of music are represented and it is, perhaps, my favorite record of all the music we have in the house. To me, this album offers a great point of departure for exploring various traditions related to the Appalachian dulcimer.
P.S.- As I understand it, Jean Ritchie is the person who introduced the mountain dulcimer to Ireland. We have an excellent player and singer from there right here on FOTMD, @macaodha .