Gearoid O' hAllmhurain will be teaching concertina again at this year's CCE MAD Week, July 6-10, Cedar Lane Unitarian Church, Bethesda, MD (just outside Washington, DC). E-mail jmitchellfanning@gmail.com for more information. Also check out http://www.ccepotomac.org. Professor O' doesn't give too many week long workshops on concertina these days, so a great opportunity to get some valuable insights. The week also includes workshops with the likes of Kevin Crawford (flute), Brendan Mulvihill (fiddle), Jerry O'Sullivan (uileann pipes), Billy McComiskey (accordion), John Carty (tenor banjo), and many more. See the above web site for complete information. Or, ask any questions here and I'll try to respond.