Can you dig the echo?

After I uploaded 10 tracks from my YouTube channel archives to Distrokid today, I thought of creating another piece for the organ. This time it was Part 5 from my cycle Organ ABC. It starts from letter E and I named it Echo.

Echo on the organ might mean two things - a separate manual on an organ with more than 2 manuals or it could be a compositional technique devised to create an echo effect.
I chose the latter. I wanted to create an effect of a dialogue between two layers of sound - loud and softer.

It is in the mode of F and I improvised it on my MIDI keyboard which was connected to the Sibelius software on my computer. After I played it, I went back and renotated the performance so that it would look legible on the score. I also changed the meter often and disposition of voices from time to time. For music in a new meter to look comprehensible I had to renotate the rhythms too - usually remove tied notes. As in the previous piece, here too I had a fun time with parallel fifths in both hands.

When this was done I printed out the score and sat down on my organ bench and played it through while pointing the camera at my fingers so that later @drugelis can transcribe the fingering from the video.

I dedicated the Echo to Pastor de Lasala, OAM (@tormus1958 on Steem) in order to show my appreciation of his relentless participation in our Secrets of Organ Playing Contest week after week.
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Let me know what you think.