Before Christmas I came across this video of Alec Frank-Gemmill playing an extract from the Britten Serenade:
http://www.youtube.com/watch?v=rVdgHed6OXEI am familiar with most makes and models of horn, but couldn't identify the horn he was playing. I decided it was some kind of Bb/F-alto with piston change valve, but was so curious (I know, why don't I get a life?). that I e-mailed him about it. He kindly replied and told me that it was a Karl Hill (sometimes known as Kortesmaki) Bb/F-alto.
I can't find out much more about this maker, except that he is located in the USA. No website, it seems. Anybody know anything more about these horns?