Wow, the length-wavelength relationship,( frequency of a guitar string) actually just looks like lips on a human mouth to me..and its doubled in 2nd harmonic.
How cool is that?
Gotta love Science!
Keep shining.
~Triddy Kat💋
Youtube channel- Triddy Kat’s Meow & Triddy Kat
Visit me at https://triddykat.com and https://triddykatsmeow.com
TRIDDY KAT®