An FYI, going 37 MPH in a 35 zone is technically illegal. Yet no one cares. Using 1 song from a streaming service to make the bride and groom's evening may or may not possibly be against someone's rule somewhere, but no one will care.
Driving 100 mph in that same zone is a big problem, as is disregarding copyright laws and downloading/sharing someone's data as a rule.
Do the right thing, but don't sweat the petty stuff. ....and don't pet the sweaty stuff