Question about how analog audio recording works

@maynovent 

Yours is a question that you can see the answer or you can’t. Some people’s brains are geared differently and they can see things. Take Albert Einstein, he figured out the theory of relativity in his head! And with all the computers we have now, we still can disprove it. How did they figure out the speed of light so he could figure out his equations?  How does AM radio work?  Is it the same as FM radio?  (No). 
Did they know that sound doesn’t travel in space before we sent astronauts? 

Stay curious!

Take Albert Einstein, he figured out the theory of relativity in his head!

As opposed to Issac Newton, who figured out his laws of motion in his knee?

I think you should just burn another one and contemplate the universe! Are we living in the matrix? That ought to keep your brain occupied for a while. Or you could just put on some early Pink Floyd and try to figure out the meaning.

My wife and I are high and having a discussion about how sound is recorded on records. I have an, I think, more than average understand of how sound and recording/playback works so I was trying to explain how grooves on the record represent sound waves https://showbox.bio/ .

What we don't understand is how polyphony is physically represented. So I can see how a single sine can easily be represented on a record. But when you're talking several sounds at once, some on the same pitch some now, dozens of timbres happening all at once, how do we differentiate those sounds on a physical medium like vinyl, or how do we represent it digitally? Is it literally nothing more than 1s and 0s? That'd be sick

i got this...

It’s all compression and rarefaction of air and its conversion by transducers. It’s the brain that decodes the music.