More about the study:
„What makes that song swing? At last, physicists unravel a jazz mystery“
https://www.houstonpublicmedia.org/npr/2023/01/18/1139783203/what-makes-that-song-swing-at-last-physicists-unravel-a-jazz-mystery/
It may be of interest to know more about the leader of this study:
https://online.kitp.ucsb.edu/online/plecture/tgeisel14/options.html
https://en.wikipedia.org/wiki/Theo_Geisel_(physicist)
As mentioned above he also is a jazz musician! I found him on discogs:
https://www.discogs.com/de/artist/11045429-Theo-Geisel-2
Scientists at the Max Planck Institute for Dynamics and Self-Organization in Göttingen have found out, that the rhythm is the result of micro-delays in musical timing. The results are published in 'Nature'.
See:
https://www.ds.mpg.de/swing
https://www.nature.com/articles/s42005-022-00995-z