I got sidetracked

@contrabourdon asked me today what I'm going to do today and I was just finished with recording my 3 improvisations for today and said that I'm ready to transcribe a Bach cantata for organ duet.

However, I got side-tracked into composing this 3rd part of my cycle "Organ ABC". It's called @contrabourdon! By the way, Contrabourdon is a very low sounding organ pedal stop...
So @contrabourdon said he will play it for the contest and I recorded a video where my hands and feet are visible so that @drugelis can add fingering and pedaling to it.
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Enjoy!