An early pioneer in the scientific study of musical sounds was Hermann von Helmholtz@; his mid-1880s work (short name Sensations of Tone) is a classic. [https:/

An early pioneer in the scientific study of musical sounds was Hermann von Helmholtz@; his mid-1880s work (short name Sensations of Tone) is a classic. [https://archive.org/details/onsensationston01helmgoog/page/n5/mode/2up?view=theater https://archive.org/details/onsensationston01helmgoog/page/n...] Short story, he used 'resonators' to pick out the partial tones that are found in complex timbres, more here: [https://en.wikipedia.org/wiki/Harmonic_series_(music)#Partial,_harmonic,_fundamental,_inharmonicity,_and_overtone https://en.wikipedia.org/wiki/Harmonic_series_(music)#Partia...] I read parts of it closely to grasp the details of what's meant by 'timbre' ... why a trumpet sounds different from a violin (or, for that matter, one violin from another!) Really useful if you want to get into sound design.