I Need help finding a list of non-functional requirement benchmarks?

I am doing a course on Non-functional testing and I need to find and test an open source program. I have found a ton of programs that I would like to use but unfortunately, not many of the programs come with the non-functional requirements which I need.

Can someone who works with creating these programs advise what are the common non function requirements for a online music application?

Or is their a direction I can go in to find a program that includes the code and the non functional requirements?

I have tried searching online through github for many various programs. The ones that do have non-functional requirements are very vague such as "Must run fast" or "Must never crash"