Here are 2 Irish jigs, usually done in the key of D but the dulcimer here is tuned to C (C G c c), for a bit more mellow sound. When it seems to change key (but doesn't really) is where it switches to the second tune, The Black Rogue.
The esteemed O'Neill's Music of Ireland gives many alternate names for the Black Rogue, including: The Black Joke, Michael Molloy's (jig), Johnny McGill's, the mysterious sounding Shandrum Boggoon (a Celtic transliteration?) and my favorite, Sublime Was The Warning!!