I see Stormzy has been trending on twitter because of

[Ash]

here you go, sw, have a musician's ear ...

https://www.whosampled.com/The-Jam/

there are only so many notes and chords, etc...

Yup, there are only twelve notes.

That site uses 'sampled' wrongly though. Playing someone else's tune / riff / progression on actual instruments isn't the same as sampling.