trumpet

I would like to ask you for a little help this time. I'm thinking about going abroad for his graduate study. I'm seriously looking for universities where he can study materials science or related discipline (acoustics...) for musical instruments. Most interested subjects are trumpet and brass instruments but the subject is not restricted only to trumpet but open to other instruments as well. Do you know any university where such research programs for PhD are available? Any information will be greatly appreciated. P.S please give me some informations about Labs or universities in US as well as UK or European country