Tango show at La Patagonia- Martin Alvarado is singing a short unplugged flavour of the music he will perform in concert at St Ethelburga’s Centre in the City of London on June 13th, accompanied by the highly accomplished Mikko Helenius, from Finland, on bandoneon. Tickets for June 13th can be bought at St Ethelburga’s with a £2 discount for June 10th customers at La Patagonia on proof of their restaurant bill from that day.