I don’t think it’s that easy.

If that were true:

• me creating a painting imitating the style of Keith Haring would be completely fine
• a computer creating an impressionist painting not specifically modeled after one artist would be theft

In music, things are messy as well:

• a computer generating a 12-bar blues (a staple of blues music) is theft
• me creating a song that sounds like Imagine Dragons could have made it is perfectly fine