Because I'm greedy.... in General Concertina Discussion Posted March 2, 2009 My perception is that a Duet concertina is more difficult to play to an acceptable standard than either than an Anglo or an English. Because of the shortage of available learning material, etc, they tend to be favoured by people who can read music and adapt materials intended for other instruments to them. For your £500-£600 budget, well you find quite a lot of of 46-key Maccanns for sale at that price and coming up on ebay. Maccanns sold by dealers in that price range can usually be relied on to be in tatty condition, probably with some fixes needed. Though on ebay you can be lucky to get one in good condition in that range. Recently a couple went for not far shy of £500 which were obviously tatty and in need of a bit of fixing. I think the sellers were lucky. But ones in good condition often don't sell for much more (on ebay), and on a bad day (for the seller) go for less. Because 46-key Maccanns have certain infuriating shortcomings, most people who play 46-key Maccanns, if they take to it, end up wanting to play a 57-key+ Maccann, which are will cost twice that as a minimum. You might also come across a 42-key Crane at that price. They don't come up too often, and condition is often questionable on them. They verge onto the "not valuable enough to be worth spending the money to fix up nicely" category. But I suspect they are, in some ways, less infuriating than a 46-key Maccann in their shortcomings. The Stagi 46-key Hayden I think can be had in your price range. You quoted my paper, so you know my views on the different size instruments, so I won't explain any more here. You can also get duets with fewer keys than those mentioned above, but I think they are likely to be too infuriatingly limited in their potential.