duets?! Accordion and...?

Hey all, for all you accordion players out there: what are some of your favorite “duet” songs? To play with another melody or just rhythm (especially bodhran, my brother is a talented bodhran and bones player). Any specifically good ones for C#/D? I really love playing Mother and Child reel with my brother on bodhran and Lakes of Sligo with a fiddler. Thanks,
-Sean