For anyone in Edinburgh or S Scotland, just to say there's a 3-week festival currently running, with numerous events, under the common title of Ceilidh Culture.
For those interested in Scandinavian music there's a long weekend of events called "Northern Streams" hosted by Edinburgh and Lothians TMSA. All events listed here:
http://www.keithfestival.btinternet.co.uk/eltmsa/events.html