Ah, Lea Nicholson on the English concertina! That takes me back a bit.

I once witnessed Lea and Richard Thompson play the Dam Busters March (the whole thing!) - I suppose it would be very difficult to play on an Anglo, or am I just being a pianist? As for playing it on guitar - of course this is impossible. So there's a proof of the existence of God.

I must say if I ever did take up the concertina I would probably have to go for a Duet as I don't think my keyboard-addled brain could get round the different notes on push/pull aspect. But maybe it's different when one's fingers are on the buttons.