>I'm also not clear if there were any that incorporated playtime "per note" dynamics

This[0] is a reproducing piano recording Ravel made in the 20s and was recorded from a Duo-Art piano in the 60s. Hearing Ravel play his own stuff a few years ago radically changed my idea of how Ravel's music should sound. (Pianist, I'd been playing Ravel for a couple of decades before that) This[2] has Prokofiev playing his own music.

"Many famous composers from around the world played their own works for the reproducing piano: Edvard Grieg, 1906 in Leipzig; Alexander Scriabin, 1910 in Moscow; Gabriel Fauré, c. 1913 in Paris; Nikolai Medtner, c. 1925 in New York."[1]

"This video is a practical demonstration and overview of how the Aeolian Duo-Art pneumatic reproducing player piano works, including how the system plays expressively by controlling the loudness of notes played with perforations on the roll."[3]

[0] https://archive.org/details/RavelPlaysRavel

[1] https://www.allclassical.org/player-piano-rolls-listening-to...

[2] https://www.youtube.com/watch?v=9uMRD2o6dJo

[3] https://www.youtube.com/watch?v=w-XrDw04P2M