[link to original on tumblr]
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Still, I quite like the alternating octave version, and - while I'd have to do a bit of looking to find which ones - I think that sort of octave-jumping descending chromatic figure is in some of the organ works I have by Bach and/or Mendelssohn. (Incidentally, the versions I have were recorded by Peter Hurford, who was the choirmaster at the St Albans Cathedral Choir while Rod Argent was a choirboy there.)