https://twetch.app/t/d1b010d85481d3c25fe7f9188f5d28096a8a62…

https://twetch.app/t/d1b010d85481d3c25fe7f9188f5d28096a8a62d349fa5d024e38600b56411982
The fundamental is the frequency at which the entire wave vibrates. Overtones are other sinusoidal components present at frequencies above the fundamental.