Does anybody know whether these services prevent a user from copying an instrumentalist's specific style? For example, let's say I input:

> "make a song with Johnny Cash singing about X"

That would result in IP/copyright issues, no? I don't really know the legal specifics here, so grant me some slack if I am not using the correct language. But, assuming that input does create a legal problem, does the same apply to these sort of prompts:

> "with a guitar solo by Zakk Wylde"

> "with drum fills like Thomas Stauch"

etc...

Are there similar legal protections around instruments as the voice?