I was at the WCCP Kilve residential concertina weekend in Somerset recently, and got permission to make available a few recordings i made. These are mainly of Alex Wade who ran the English workshop (and was one of the best teachers of concertina I have experienced), our workshop showcase, a band piece, and the massed concertinas of Kilve doing "Swing Low, Sweet Chariot" as an impromptu finale.
See/hear http://www.pghardy.net/concertina/kilve/kilve201603/.