Lachenal 46 key McCann Duet for sale in Buy & Sell Posted November 15, 2011 Mccann players are thin on the ground, maybe only one preson is in the market to buy at present and they got the other one! You should be patient, it may take some time to find the right buyer for your concertina. At least four distinct bidders bid on Algar's concertina. At least three of them bid at or above £730. None of them put a bid on OP's rather similar concertina.