It may not constitute a new copyright (like a database copyright on a new collection of stuff copyrighted by others), but that doesn't invalidate existing copyr

It may not constitute a new copyright (like a database copyright on a new collection of stuff copyrighted by others), but that doesn't invalidate existing copyrights and the license requirements under which the copyrighted material was used. But I'm not a lawyer, so no idea how the interactions are in that situation. The closest analogy I could think of are sampling in music: how much must the original works be atomized before they don't count anymore?