system
Given the following post, respond as if you're commenting on Reddit:
human
EILI5: How does sound transfer to tapes and/or records?

And for that matter how do speakers replicate any sound we desire?
gpt
Sound has two main attributes, frequency and dynamics (pitch and loudness). This can be represented using electricity that goes up and down higher the louder it is, and moves faster the higher the frequency is. This electricity is then changed into magnetic energy. Tape is ran over the magnets at a certain speed, which transduces the representation to a magnetic reading on a tape. 

To get back to speakers, the reverse happens and the magnet is read and the information is changed to electricity. The electricity runs over wires to the speakers. The electricity is then converted to magnetism again, and the change in magnetism pushes and pulls the speakers at the correct speed to recreate the original sound.