More Anglo C/G Concertina Button 'Layout' question/s. What is the Irish version of Jeffries L/O ? in Instrument Construction & Repair Posted November 21 I agree with Stephen that there was a third D on the draw on the last button of the LH inside row. (Same as Lachenals) I too have changed it to a low A by loading it with a dab of solder. In addition I have seen an A/D# instead of A/Bflat on the second last button on the LH outside row. Seems like a strange choice but perhaps has something to do with chording. Anyone got views on this?