7-String Slap & Trap Riff Creation

Recommended resources

The freely available resources this lesson will direct you to.

Welcome back. In our last lesson, you successfully composed a fluid 4-bar passage by integrating multi-string tapping with legato and slides. This process of breaking down a complex style into its fundamental techniques and then reassembling them into an original creation is the core of what we're doing in this final module.

Today, we're diving into one of the most distinctive elements of the modern guitar sound: the fusion of percussive bass techniques with intricate, trap-inspired rhythmic patterns. Your goal is to compose a 4-bar riff on your 7-string that combines thumb slaps with trap-influenced muted picking patterns.

To do this, we'll think like a producer building a drum beat. Your thumb will become the kick drum, providing a heavy, foundational pulse. Your pick, combined with precise muting, will become the hi-hat, creating a layer of fast, syncopated rhythmic texture. Let's get started.

1. The "Thump": Your Kick Drum

The percussive thumb-slap, often called "thumping," is a technique borrowed from funk bass players like Larry Graham and modernized for guitar by virtuosos like Tosin Abasi. It forms the rhythmic backbone of the style you're aiming for. There's no better person to learn the mechanics from than Tim Henson of Polyphia himself.

In the following video, Tim breaks down the exact physical motion required for a clean, powerful thump. Pay close attention to his explanation of hand position and how he conceptualizes the motion as a pick stroke, not just a slap.

How to Thump & Fingerpick

Watch this video from Tim Henson, "How to Thump & Fingerpick," to understand the fundamental mechanics.

First, watch the introduction and his slow playthrough of the etude to hear the goal in context. Then, focus on the detailed breakdown of the thumb technique from the core motion. He explains making a fist, the 45-degree angle of approach, and striking through the string. Critically, absorb his analogy of the thumb acting like a pick, with both a downstroke and an upstroke. Practice this motion on your low F# string. Get a feel for the percussive attack of the downstroke and the distinct sound of the upstroke.

2. The Muted Pattern: Your Hi-Hats

With the kick drum established, we need to add the hi-hats. In this style, that means creating a tight, percussive, and often rapid "chatter" of muted notes. This is what gives the riffs their trap-influenced, syncopated feel. There are two primary ways to achieve this, and you'll likely use both.

A. Left-Hand Muting

This technique, also common in funk bass, allows you to create staccato, percussive sounds while your picking hand is busy thumping. It involves lightly resting your fretting-hand fingers over the string to mute it completely. The following video explains this concept clearly.

5 Exercises to Improve your Thumping (6, 7, & 8-String)

In the video "5 Exercises to Improve your Thumping," instructor Thomas Powell demonstrates left-hand muting.

Watch the section explaining left-hand muting. Notice how his fretting hand isn't pressing the string down to the fret but is instead just covering it, allowing the picking hand to strike a completely dead, percussive note. This is perfect for creating those hi-hat-like sounds between thumb slaps.

B. Palm-Muted Picking Streams

The second method involves combining aggressive palm-muting with alternate picking to create a continuous stream of muted notes. Tosin Abasi is a master of this.

Selective picking: learn Tosin Abasi's groundbreaking ...

This Guitar World article analyzing Tosin Abasi's style explains how to create seamless muted patterns.

Find the section for Example 3. Read the description where it explains how, when coupled with palm-muting, the effect is a continuous stream. While he's discussing a specific arpeggio, the principle is what we need: using a firm palm mute right at the bridge while picking to generate a tight, percussive sound, rather than a sustained, palm-muted note.

3. Synthesis: Building the Groove

Now, let's combine the "kick" and "hats." This is where the magic happens. The key is to see your right hand as performing two independent tasks simultaneously.

The Tosin Abasi article provides a perfect, concrete example of how these elements are integrated.

Selective picking: learn Tosin Abasi's groundbreaking ...

Let's revisit the Tosin Abasi article to see how to put these parts together.

Focus on the explanation for Example 2. The text describes a five-note sequence that combines fretting-hand taps with a thumb slap/pop and a first-finger pluck. This is the blueprint for the technique: the thumb handles the low-end slap, while the other fingers (or the pick) handle melodic or percussive notes on other strings.

4. Your Compositional Task

It's time to build your riff. Think of this as an iterative development cycle. Set your metronome to a slow, manageable tempo like 60-70 bpm.

Step 1: The Rhythmic Foundation (The Backend Logic)

Bar 1: Start with just your thumb on the low F# string. Create a simple, syncopated kick drum pattern. For example: a thump on beat 1, another on the "and" of 2, and another on beat 4.
1 e + a 2 e + a 3 e + a 4 e + a
X . . . . . X . . . . . . . X .
Loop this single bar until the rhythm feels locked in and automatic.

Step 2: Layering the Hi-Hats (The Frontend Animation)

Now, using either left-hand muting or aggressive palm-muting, add a steady stream of 16th-note "ghost notes" with your pick on a higher string (like the muted G or D string) in the spaces between the thumb slaps.
1 e + a 2 e + a 3 e + a 4 e + a
T k k k k k T k k k k k k k T k (T=Thump, k=muted pick stroke)
The goal is a continuous rhythmic texture. Your picking hand will be doing a constant down-up 16th-note motion, but some of those strokes will be replaced by the thumb's slapping motion.

Step 3: Introducing Melody and Harmony (The API Integration)

Now, start turning some of those muted notes and slaps into pitched notes.
- Make your thumb slaps target specific frets on the low F# string to create a bass line (e.g., open string, 3rd fret, 5th fret).
- Replace some of the muted picked notes with fretted notes on the higher strings to create a melodic fragment.
Your 4-bar riff doesn't need to be complex. It could be a one-bar pattern that repeats four times, or a two-bar phrase that repeats. The focus is on the quality and tightness of the groove.

Step 4: Refine and Debug

Record yourself playing the 4-bar loop. Listen back critically.
Groove: Is the timing precise? Does it feel rhythmically compelling? Adjust the placement of your thumps and picked notes.
Clarity: Is there a clear sonic separation between the bassy thump and the tight, percussive picking? If not, work on your muting and the attack of your thumb. Ensure unwanted strings are muted by both your fretting and picking hands.
Playability: Is the riff physically awkward? If so, simplify it. A simple, tight groove is far more effective than a complex, sloppy one.

Conclusion

In this lesson, you've deconstructed and then synthesized one of the most rhythmically advanced techniques in modern guitar. By thinking of your guitar as a drum machine, you can systematically build complex grooves from the ground up.

Key Takeaways:

The core of this style is layering independent rhythmic parts: the "thump" (kick drum) and muted picking (hi-hats).
The "thump" is a precise picking motion with the thumb, capable of both down- and upstrokes.
Trap-influenced patterns are achieved with streams of muted 16th or 32nd notes, using either left-hand or aggressive palm muting.
Composition is an iterative process: start with the foundational rhythm, layer the texture, and then introduce melodic and harmonic content.

You are now at the threshold of the final challenge. In our next lesson, you will be tasked to draft an 8-bar phrase in the style of Polyphia that integrates two-hand tapping, rhythmic complexity, and one non-functional harmonic technique. This will be the culmination of everything you've learned, combining the tapping from the last lesson, the rhythmic engine you built today, and the harmonic knowledge from earlier in the course into one cohesive musical statement.