 Back home, he made a copy of the instrument in a tiny conservatory at the back of his house in the Dublin suburb of Rialto.The harpsichord was played by John S. Beckett for the first time in public in 1959 as the continuo for Bach's Saint Matthew Passion and was praised in the national press.Beckett subsequently persuaded the authorities in the Guinness Brewery to provide Gannon with a special workshop, in which he made five harpsichords and restored several antique pianos.