Bass Gym: Developing Slap Groove Control With Sextuplets and Hammer-Ons

Have you ever heard a promoter say the gig doesn’t pay, but there will be tons of exposure? Variations of that line are everywhere, and it has become a running joke in the music world. Somehow, musicians are expected to make the math work.

That idea sparked a small mental game for me. I imagined paying my rent with every note I played. Rent due? Grab the bass and hand your landlord a stack of funky notes instead of a check. Each groove becomes a form of musical currency.

That silly thought experiment led directly to today’s Bass Gym workout.

Download the transcription and follow along with the video below.

Slap Groove in A Minor Aeolian

This lesson is built around a slap groove in the A minor Aeolian scale: A, B, C, D, E, F, G, A. The tonality keeps things grounded while leaving plenty of space for rhythmic movement and articulation.

At its core, this groove combines three main ingredients:

• Sextuplet subdivisions
• A shuffle feel
• Left-hand hammer-ons

Together, these elements create a blues-based framework with a much busier bass line than usual. Funky repeating patterns are connected with percussive ghost notes, allowing the sextuplet texture to feel continuous rather than forced.

Developing Flow With Sextuplets and Shuffle Feel

Although the line is rhythmically dense, it should still feel relaxed. Think of this as a blues groove that just happens to be dressed up with constant motion. The shuffle feel is what keeps it from sounding mechanical, even when the sextuplets are firing on all cylinders.

Pay close attention to how the percussive notes connect each phrase. They are not filler. They are what glue the groove together and help maintain forward momentum.

Hammer-Ons and Liquid Slap Phrasing

One standout moment appears in bar 4, where a liquid lick uses hammer-ons across three strings: A, D, and G. This passage is a great example of how left-hand articulation can soften an otherwise aggressive slap idea.

Later in the groove, bars 17 and 18 introduce a more fluid feel before resolving with strong octave hits in the final bar, bar 19. That contrast between liquid phrasing and solid octaves gives the line a satisfying arc from start to finish.

Practice Tips for This Groove

When practicing this lesson, focus on two main areas:

• Keeping the right hand relaxed during slap and pop variations
• Clearly articulating hammer-ons with the left hand

Tension is the enemy here. The groove is busy, but it should never feel rushed or stiff. Start slowly, lock in the shuffle feel, and let the sextuplets settle naturally into the pocket.

Bass Gym Recap and Final Thoughts

This Bass Gym workout uses a playful concept to explore serious technique. By combining sextuplets, shuffle rhythm, and hammer-ons in A minor Aeolian, you build control, flow, and articulation in a slap context.

Have fun with this one. And who knows, maybe one day we really will be able to pay the bills with nothing but a great slap groove.