[musictlk] Saving audio from JW Pepper Website

[Miso Kwak]

Hi
I would like to know if it's possible to extract the audio sound as a 
separate file from this website.
https://www.jwpepper.com/Wicked/2481720.item
After clicking the link, I click Open audio in new window link to 
listen to the file.
I tried to convert this using the new window's url on convertfiles.com 
but wasn't able to convert it.
Is there any way I could save the audio sound as a separate file?
Thank you in advance.
Miso Kwak