https://sethares.engr.wisc.edu/prelude.html https://sethares.engr.wisc.edu/prelude.html this work claims that the 12 tones system (IMO not a scale) seems "univ

https://sethares.engr.wisc.edu/prelude.html https://sethares.engr.wisc.edu/prelude.html this work claims that the 12 tones system (IMO not a scale) seems "universal" is in fact so widespread because of the timbres in the instruments used (i.e. the haromic spectrum of strings, wind instruments, and human voice, etc).