Thank you for your question. You have brought to my attention that I misread the previous question regarding iTunes Festival downloads, so please let me clarify.
You will find the 2009 and 2010 iTunes Festival performances on the Downloads page but, as the previous asker pointed out, there is not one yet for 2012. iTunes is still rolling out EPs for the 2012 Festival throughout October, so it’s possible that a Mumford & Sons one is yet to be published.
If they do not make one available, I will provide a download; I just don’t want to post one unless it is certain there won’t be one commercially available for purchase.
I apologize for my misunderstanding and I hope this helps. Thank you!