After tuning down a half-step, you’ll be ready to dive into Duff’s intro bass melody. Like bandmate Slash’s iconic guitar hook, this riff is built around triadic movement through the chords D, C, and G. Here, articulation is key—to sound most like Duff, use a pick and play with downstrokes back near the bridge. For easiest fingering, start with your middle finger anchored at the D string’s 12th fret.

Duff heaves himself back into the rhythm section after the intro’s eight-bar bass feature, planting himself inside the band’s engine room. Compared to the intro’s wide-open spaces, the main verse groove (see bar 15) doesn’t leave much room for rhythmic invention: big roots on one and three with eighth-note pickups. Duff humanizes the otherwise robotic line with tasteful runs every other bar and subtle open-A pickup notes (see beats two and four in bars 26–28). At section changes throughout the tune, listen for Duff’s “here-we-go-now” ramp-up riffs (bars 40, 48, 56, and 72), especially the recurring sub-hook he plays at bar 24. Other great fills crop up at bars 54 and 70, showing both Duff’s awareness of the appropriate mode (in this case, D Mixolydian) and his willingness to abandon it in favor of more chromatic approaches.

At 3:35 (section H) the song shifts gears, ramping up for Slash’s guitar solo. For his part, Duff lashes himself to the drums even tighter, hitting big downbeats followed by upper-octave accents. Though repetitive, the section shows how Duff makes the track feel live with his subtle deviations. His tension-building eighth-note chug in bars 124–125 is especially effective.

At I, Duff and company dig into a breakdown section where they leave lots of space for singer Axl Rose’s “Where do we go?” mantra. For the playout, Duff begins to rely more on solid eighths to keep up momentum until the end. The band’s quarter-note triplet run at bar 154 is crucial—be sure to keep your ears wide open at this point, whether you’re playing live or along with the record.

Now touring on the heels of Velvet Revolver’s latest CD, Libertad, McKagan continues to carve his name in rock bass. Though his style has certainly progressed in the last two decades, one thing hasn’t changed: Duff rocks!