Ah well now - since we have the master played by a master, here's another example.
Interesting, because it shows that the pedal isn't necessarily used for bass lines.
On most organs the pedal can be coupled to any/all of the manuals and here, it's being used for the chorale theme with the left & right hands playing an ingenuous little game together.
This is BWV 650 from the 6 Schübler Chorales - "Kommst du nun, Jesu, vom Himmel herunter" (Come thou, Jesu, from heaven to earth).
The Schübler Chorales are so-named because Bach gave them to engraver and publisher Johann Georg Schübler, who is named on the title page. Bach apparently thought these pieces were something very special because they wouldn't ordinarily have been passed to a master engraver for reproduction.
BWV 650 is Bach's transcription for organ of the 2nd movement (scored for alto voice) from BWV 137 - Cantata "Lobe den Herren, den mächtigen König der Ehren" (Praise the Lord, the mighty King of honour), written for performance on the 12th Sunday after Trinity and first performed in 1725. The transcriptions for organ were issued around 1748.
Bach thoroughly recycled many musical ideas.
The organ was built by Heinrich Gottfried Trost (1681-1759) and probably completed around 1741 (it had something of a chequered history).
Although Bach didn't play this organ, he regarded this scale of Trost's work very highly and it's exactly the type of organ sound Bach would have known well.
I'd better stop now.
[youtube]http://www.youtube.com/watch?v=e4qgqHw24XA[/youtube]
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Giraffe: a ruminant with a view.