The great New Zealand bass Oscar Naztka sings \"O Isis und Osiris\" (from act II of Die Zauberflöte by Wolfgang Amadeus Mozart) on Columbia record DX 1370, played on an EMG Mark Xb Oversize gramophone with a Meltrope III soundbox and a Burmese Colour Needle. Recorded May 10, 1947 in London. The Orchestra and Chorus of the Royal Opera House, Covent Garden are conducted by Karl Rankl.