Hi Eliza.
Nice comment. But, will he listen? Doubt it!!
As for the Concertina question (After all this thread started about instruments. 100 years ago!)
I took up the Duet by mistake in 1973, not knowing anything about tinas, sytems, or anything much.
So I suppose the choice of system is a trial and error sort of thing.
If you want to play Wav's idea of one line playing, then the English would suit best. If your into polyphony, then the Duet wins hands down. (Wav would object, but so what?)
The Anglo is really good for bouncy dance music, and the Irish amongst us have turned it into a wonderful vehicle for their "Good" music.
My advice, Try them all! depends what you want to achieve.
You could do worse than getting hold of the 2 CD sets Anglo International, and English International. (The Duet one is still under construction!)
Regards to all.
Ralphie. (Phew, maybe this can become a thread about music again!)