Did not create the midi sequence. This sequence is by Bob Fisher. While we do create midi sequences for our original work and some short classical pieces, this 25:49 minute concerto would require too much time to work from scratch.

I did edit the midi sequence to taste, to remove midi continuous controller information and to better drive the synths used. Most extensive editing (clean up) in the basso and celli tracks.

Yeah I can imagine. My first attempts with DAW were with midi files too. Took me some time to figure out how to remove cc infos as it was messing with VST instruments.
I did Bolero this way in 2012. http://youtu.be/AcXBY1HPjko
Not sure If I could post it here as there is someone unknown who created midi file.