As you have replied DB and not hit and run I will try to address your ignorance of the instrument and some of your comments about it.The concertina is a small instrument, but is far from being a toy.
I play a 38 Key Anglo.Which for this type of Concertina is a different note on the push than on the pull.This means I have available to me 76 notes the equivelant to a small piano.Captain Birdseye plays an English system which is the same note in and out but he has more buttons than I do.The Anglo has the high notes on the right and the low notes on the left,which means that I can play a tune on the right side and play the chords on the left.Many concertina players even when accompanying themselves singing can play the tune and play full chords as well.There is no music that cannot be played on a concertina including that of Bob Marley.
Ragtime,Jazz,Traditional,Classical,Rock,Blue grass,Blues and the list goes on, all have been recorded by concertina players.About three weeks ago I was talking to John Nixon who you will not know DB but he played on a Paul McCartney Album.
Check your facts DB there is a lot more to the Concertina than you think.
Al