so you can play with acoustic guitars using a USB mic instead of a Real Tone Cable. Legacy Branch (2022):

Because official digital storefronts no longer sell the older DLC, navigating the setup requires a few specific steps native to the PC version of the game: 1. Game Version Management How To FIX Rocksmith 2014 after the 2022 UPDATE BROKE IT

Let's address the core keyword. In standard gameplay, Rocksmith 2014 locks almost everything behind a progression wall.