One good arrangement if you're playing Irish music with fiddle or mandolin solo, is to play "I'll Tell Me Ma" for a couple of verses a solo of "the Barren Rocks of Aden" then carry on to the end of the song with the "Barren Rocks " being played at the same time as singing "Ill tell me Ma". It works well. I've tried it at sessions after hearing a grop called "North Sea Gas " doing it