That is my 'LARPing as Guinevere' icon, along with this one. I had a rather intense LARP experience around that character, heavily informed by having been obsessed with Arthurian myths throughout college.

I actually helped run a two hour Arthur roundtable with music and scholarship last year at Lunacon that was a lot of fun. Sadly, I missed out half of it, but for very good reasons.

I can't find the song on YouTube, but there is a DropBox with your name on it.