Which Metallica song features the main riff written by bassist Jason Newsted for The Black Album?

“My Friend of Misery” features the main riff written by bassist Jason Newsted for The Black Album.

Newsted developed the riff for what was originally intended to be an instrumental. Instrumental pieces had appeared on each of Metallica's previous albums, and “My Friend of Misery” began as a possible continuation of that tradition.

The finished song received writing credits for James Hetfield, Lars Ulrich, and Jason Newsted. Its brooding arrangement and lyrical focus on isolation fit the darker emotional atmosphere of the album while giving Newsted a notable songwriting contribution.

Most of the album's songs were written primarily by Hetfield and Ulrich, with Hetfield handling the lyrics. That pattern can make Newsted's role easy to overlook. His contribution to “My Friend of Misery” is therefore a useful distinction from the other album tracks, which generally carried the Hetfield-Ulrich songwriting partnership.