The question was basically settled with music sampling: https://en.wikipedia.org/wiki/Sampling_(music)#Legal_and_ethical_issues https://en.wikipedia.org/wiki/S

The question was basically settled with music sampling: https://en.wikipedia.org/wiki/Sampling_(music)#Legal_and_ethical_issues https://en.wikipedia.org/wiki/Sampling_(music)#Legal_and_eth... I.e. any use without permission is illegal.