Update:

It was a wonderful concert but I never found another kiltie in the crowd of over a couple thousand. Did have a very funny thing happen on the train going home though.

I had brought one of those bag chairs with me to sit on at the concert. When I got on the train I placed the bag up in the overhead bin. One passenger said, "Don't put them up there. Play us a tune!" Another chimed in saying, "Yeah, that would be great." I went to reach for the bundle but then I turned to them and said, "I'd better not. I haven't been able to tune that chair properly for weeks."

Isn't it funny how everyone who wears a kilt is also supposed to be able to play the bagpipes. I guess I'd better get on the stick.