A few days ago Erik Simmons (Hoofdwerk) uploaded a beautiful recording of Vivaldi's Cantabile from the third Flute Concerto played on the sample set of St Martini (http://www.contrebombarde.com/concerthall/music/37670
). As the transcription he used seems to be out of press and there were a few requests for the score, he contacted me and asked whether I could make a transcription.
That turned out to be a bit of a solfeggio exercise for me. There is piano transcription available on IMSLP (https://imslp.simssa.ca/files/imglnks/usimg/5/55/IMSLP469206-PMLP543704-Concerto_in_D_RV428_piano_part.pdf
) that is too much written for the piano to be used as a transcription for the organ. As reference I used Hoofdwerk's recording. That recording and the piano transcription were leading for the harmonic layout in my transcription. And as I like the dotted rythms in the accompaniment in hisrecording, I added a few more of them in my transcription.
I think the result is quite nice, and I hope you do too. I made two versions of the score: a compact one on one page, and a more spacious one on two pages.
As I quite liked Erik's performance I shameless copied his Idea to use a slightly different registration in combination with the tremulant for each repeat.
Score available here: http://partitura.org/index.php/antonio-vivaldi-cantabile-from-flute-concerto-nr-3-rv-428