| Year | Role | Song | Artist | Album | Notes |
|---|---|---|---|---|---|
| 1989 | Harmonica | "Just One of Those Things" | Gutterboy | Gutterboy | |
| "Growing Up Under the RR" | Extra track on 1992 re-release | ||||
| 1991 | Harmonica | "More Than She Knows" | Spin Doctors | Pocket Full of Kryptonite | Album reached #3 on Billboard 200 |
| Backing vocals and 'Inspiration' | "Two Princes" | Reached #1 on Mainstream Rock; #7 on the Hot 100 | |||
| 1992 | Harmonica | "You Can Leave Your Hat On" | Merl Saunders | Save the Planet so We'll Have Someplace to Boogie | |
| "My Problems Got Problems" | |||||
| 1993 | Harmonica | "I Lost My Mule in Texas" | Aquarium Rescue Unit | Mirrors of Embarrassment | |
| Harmonica | "Built for Comfort" | Merl Saunders | It's In The Air | ||
| 1994 | Harmonica | "What Would You Say" | Dave Matthews Band | Under the Table and Dreaming | Reached #9 Top 40 Mainstream; #11 Modern Rock Tracks |
| Harmonica | "Louisiana Blues" | Foghat | Return of the Boogie Men | ||
| Harmonica | "Communication Breakdown" | Jeff Healey | Cover to Cover | Led Zeppelin cover | |
| 1995 | Harmonica | "Mule" | Gov't Mule | Gov't Mule | |
| 1996 | Harmonica and Vocal duet | "Today I Started Loving You Again" | Dolly Parton | Treasures | Merle Haggard cover |
| 1997 | Harmonica | "Feather" | God Street Wine | God Street Wine | |
| "She Comes Up Softly" | |||||
| 1998 | Harmonica | "Tuesday's Gone" | James Hetfield Pepper Keenan Jerry Cantrell Sean Kinney "Big" Jim Martin Gary Rossington Les Claypool |
Garage Inc. by Metallica | Live Lynyrd Skynyrd cover |
| 1999 | Harmonica | "She Caught the Katy" | Taj Mahal | Blues Light Boogie | |
| Harmonica | "On the Other Side" | Leftover Salmon | The Nashville Sessions | ||
| Harmonica | "Leave Me Alone" | Tino Gonzales | Two Sides of a Heart | ||
| Harmonica | "Twine Time" | ||||
| 2000 | Harmonica | "If Only" | Hanson | This Time Around | |
| "In The City" | |||||
| 2000 | Harmonica | "Diana" | God Street Wine | The Last of the Wine | |
| 2000 | Harmonica | "Scarred But Smarter" | Kevn Kinney | The Flower and The Knife" | |
| 2001 | Harmonica | "I'm Gonna Move to the Outskirts of Town" | Chico Hamilton | Foreststorn | |
| 2002 | Harmonica | "Country Love" | Cee-Lo | Cee-Lo Green and His Perfect Imperfections | |
| Harmonica | "Our Greatest Year" | Bad Astronaut | Houston: We Have a Drinking Problem | ||
| 2003 | Harmonica and vocals | "I Saw a Bird Fly Away" | Dar Williams | The Beauty of the Rain | |
| 2004 | Harmonica | "Curbside Prophet" | Jason Mraz | Tonight, Not Again | Live |
| "Too Much Food" | |||||
| 2005 | Harmonica | Tom "Bones" Malone | Soul Bones | ||
| 2007 | Harmonica | Canned Heat | The Christmas Album |
