How "Celtic" is Margaret's Waltz? You can find at as "Irish trad" and "Scottish trad" on the internet(that well known source of wisdom on tune origins); but I dont know much about the ethnic or cultural backgound of its composer, Patrick Shuldham Shaw; the tune was written in the 60's I think, and popularised by Aly Bain...a well-known "Celtic" fiddler, of course.
    Can anyone enlighten us on Dr Shaw's ethnicity?