What frequencies does the width sample correspond to in the wave file?

Question

Character encoding

Hello.
What frequencies does samplewidth correspond to in the header of the wave file?
Selecting 1 byte in python:

music.setparams((1, 1, freq, 0, 'NONE', 'not compressed'))

And I write from -250 to -240, it turns out some kind of sound at frequencies > 10,000 Hz
On which bytes and how is the frequency 500 - 2000 Hz encoded?
Thanks