How to Play John Kahn’s Funky Blues Bass Groove on “Get Out of My Life Woman”

The blues is a foundational genre for bassists, but adding funk to the mix takes it to another level. In this lesson, we explore John Kahn’s funky blues bass line from the Jerry Garcia Band’s version of “Get Out of My Life Woman,” originally written by Allen Toussaint. This groove is a fantastic study in 12-bar blues variations, syncopation, and open-string techniques—all essential for any bassist looking to expand their repertoire.

In this step-by-step breakdown, we’ll cover:

• The structure of the funky 12-bar blues progression
• Chord substitutions that add extra groove
• Essential blues techniques including slides, chromatic motion, and open-string phrasing

Understanding the Groove: The 12-Bar Funky Blues Progression

At its core, this song follows a 12-bar blues progression in C, but with an interesting twist: instead of the typical V-IV turnaround, this version uses a bVII-IV turnaround, creating a different feel.

Here’s the standard 12-bar blues form in C, modified for this groove:

1. Bars 1-4: C7 (I chord)
2. Bars 5-6: F7 (IV chord)
3. Bars 7-8: C7 (I chord)
4. Bar 9: Bb7 (bVII chord, replacing the V chord)
5. Bar 10: F7 (IV chord)
6. Bars 11-12: C7 (I chord, return to groove)

This subtle chord substitution gives the groove a funkier, more syncopated feel and makes it stand out from a standard blues shuffle.

Breaking Down the Funky Blues Bass Line

The main bass groove is built around chord tones, syncopation, and a touch of chromatic movement. Here’s a step-by-step breakdown of the pattern played over the C7 chord:

1. Find the Root: Start on C (3rd fret, A string).
2. Outline the Chord: Play the root (C), third (E), fifth (G), and seventh (Bb).
3. Add the Octave: Introduce the high C for extra punch.
4. Walk Down the Scale: Use the flat seventh (Bb), major sixth (A), and fifth (G) for a smooth descending motion.
5. Use a Bluesy Slide: The Eb to E slide (minor to major third) adds a funky, expressive touch.

Applying the Groove to Different Chords

• F7 Chord (IV chord): The same bass pattern moves to F (1st fret, E string), using the open A string for the third.
• Bb7 Chord (bVII chord): The groove can be transposed using Bb (1st fret, A string) as the root.
• Turnaround: Instead of the standard V-IV (G7 to F7), this version substitutes Bb7 before moving to F7, keeping the groove tight and funky.

Essential Techniques for Funky Blues Bass

1. The Power of Open Strings

One of the standout features of this groove is open-string motion, especially when transitioning between the C7 and F7 chords. Using the open A string for F7 allows smoother movement and keeps the groove fluid.

2. The Minor-to-Major Third Slide

This classic blues trick (Eb to E) adds expressiveness and bite to the groove. Many legendary bassists use this technique to blend major and minor tonalities, creating tension and release within the line.

3. Syncopation and Ghost Notes

To achieve a true funk feel, play slightly ahead of the beat and incorporate ghost notes (lightly plucked muted notes) for rhythmic variation.

Practicing and Applying This Groove

Now that you understand the groove, here’s how to practice and apply it:

1. Start Slow: Master each part of the groove at 50-60% of the song’s tempo before speeding up.
2. Loop the Progression: Play through the 12-bar blues form repeatedly to internalize the changes.
3. Experiment: Try moving the groove to other keys and incorporate your own fills.