Which song on Metallica's The Black Album has a main riff credited to bassist Jason Newsted?

“My Friend of Misery” is the song on Metallica's The Black Album whose main riff was written by bassist Jason Newsted.

Newsted originally conceived the idea as an instrumental, continuing a pattern in which earlier Metallica albums had included instrumental pieces. The finished song instead received lyrics by James Hetfield and music credits to Hetfield, Lars Ulrich, and Newsted.

The track appears as number 11 on the standard album, directly before “The Struggle Within.” Its album version runs 6:49, making it one of the longer songs on the record.

The song is sometimes overlooked because the album's best-known singles were “Enter Sandman,” “The Unforgiven,” “Nothing Else Matters,” “Wherever I May Roam,” and “Sad but True.” Nevertheless, “My Friend of Misery” is an important example of Newsted's creative contribution to the album.