Not my project. Looks very interesting though!

Do you have endpoints for song features and song analysis?

Why do you need to have a lot of permissions for the extension?

This extension would be able to read and alter web pages and see your browsing history on this website. This could include sensitive information, including passwords, phone numbers and credit cards.

You can change this later in the Websites section of Safari Settings.

Great concept. Have you done much thought to factor in AMLc CTF and money laundering laws?

How do you make money and stay alive as a company?