Well I wouldn't know how 'usual' it is as such (though it may perhaps be in the context of the revival, considering Ewan's enduring influence) but the only tune I've heard is the one used by him in 'Minorie':

http://www.youtube.com/watch?v=AZRtWZQ-Za4&playnext=1&list=PLE25240B0ABEFEB4D