Here are two concertina players who I love to listen to. You can as well.

The first is Bill Whaley from Bill Whaley and Dave Fletcher
This video was taken by Sue Dewsbury at Faldingworth Live.

http://www.youtube.com/watch?v=Y1kAMmkLHC4

The second is Iris Bishop, seen here with Martyn Wyndham-Read

http://www.youtube.com/watch?v=zKKJzzChzRQ&feature=PlayList&p=50D5402B4373FE8B&playnext_from=PL&playnext=1&index=41