How Did Brahms Play The Piano?

This is an independent research project I did over the last year, trying to reconstruct Brahms's performance on his famous wax cylinder recording. I'm very pleased with the results and want to share what I've found out.

References:

Brahms at the Piano by Jonathan Berger and Charles Nichols:
https://ccrma.stanford.edu/groups/edison/brahms/BrahmsLeonardo.pdf

Interesting history about the cylinder:
http://www.cylinder.de/resource_brahms.html

My own academic writeup for this project:
https://osf.io/xq835/

Old Recordings:

Leschetizky plays Chopin Nocturne:
https://www.youtube.com/watch?v=YQY7ZVnKfI4

Pugno plays Chopin Nocturne:
https://www.youtube.com/watch?v=z3nq2WSxdTQ

Pugno plays Chopin Polonaise:
https://www.youtube.com/watch?v=TGT5ouWVSLI

Pachmann plays Chopin Nocturnes:
https://www.youtube.com/watch?v=C5BXTBGrMPY

Saint-Saëns plays Beethoven:
https://www.youtube.com/watch?v=lIYgbzhCrCA

Видео How Did Brahms Play The Piano? канала MusicJames