Triosonata nr 1, Es Dur, BWV 525, first movement

When I started practising this Triosonata I thought the last movement would be the most difficult one. Turns out I was wrong. It is the first movement that is a real killer.

By now I've spent countless hours on it, and I still can't play it reliably without errors. I need several takes before I have a recording that is without too much large mistakes.

Patrick Larhant played the complete Sonata a few weeks ago, on both the Walterhausen sample set and the Groningen sample set (https://www.contrebombarde.com/concerthall/music/38827).

I thought it a nice idea to also play it twice, on the Altenbruch sample set and again on the Groningen sample set. So we can compare the same piece on the same organ with different registrations and on two different dryish sample sets.