I use the Roland 505ii looper, and do massive 'samples' - whole verses etc, great for song analysis, practice etc. If I could incorporate something into a hit song, I'd happily pay the royalties to the 'samplee'. I rather suspect the early days of sampling/ hip hop etc, it was the "how do we get paid...they're ripping us off" panic that created issues. Now, the money-flow has been standardised, and sped up, there are considerably less problems. Oh, my favourite example of extreme sampling - https://www.youtube.com/watch?v=MJYeSpyRpRA&list=PLXa6-G1Tk7...