There has actually been a judicial decision on this. Rocker John Fogarty (remember Creedence Clearwater Revival?) was accused of copying, in a new song, the style and content of one of his older songs for Creedence. The case came to trial because copyright on the older work was now owned by a different media conglomerate from the one owning the new work.
The jury decided that no such concept of self-plagiarism existed.
There has actually been a judicial decision on this. Rocker John Fogarty (remember Creedence Clearwater Revival?) was accused of copying, in a new song, the style and content of one of his older songs for Creedence. The case came to trial because copyright on the older work was now owned by a different media conglomerate from the one owning the new work.
The jury decided that no such concept of self-plagiarism existed.
Thanks for the info. I always thought self plagerism was a silly notion.