This is the development of an unreleased riff, taken from "Making of Unforgiven 3" video. It's also an introduction to the next tutorial video. The Unforgiven" is a power ballad by American heavy metal band Metallica. It was released as the second single from their. A list of lyrics, artists and songs that contain the term "unforgiven/4" - from the The Unforgiven [US CD/Cassette Single] (Metallica) · The Unforgiven 2, Pt. 1. If there was an Unforgiven IV, would it be on the next album? It would make sense because there is a pattern for the first 3. The Black album. -Jason Newsted on VH-1's Behind The Music: Metallica Unforgiven Four (Song begins sounding almost exactly like Unforgiven 3 in the hopes. On Music: Rock, a GameFAQs message board topic titled "Metallica HAS TO make an Unforgiven 4".