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Rhythmic Subdivisions on Bass Guitar

If You Want to Improve Your Bass Groove, Try Thinking More About Subdivisions

What are rhythmic subdivisions?

Rhythmic subdivisions exist within all music. They are created by dividing beats into smaller sub-beats. In this video lesson I’ll explain why they’re so important and I’ll give you some tips on how to practise them to improve your bass groove.

Why are they important?

Subdivisions are the key to having great timing on the bass. Rhythms are created by playing notes on subdivisions. If you want your rhythms to be accurate and your bass lines to groove then you must place your notes accurately onto them.

How many different subdivisions are there?

Not as many as you might think. In theory you could divide a beat into any number. However, most music divides beats into either two, three or four. If you can execute these three subdivisions accurately then you will have a great groove in virtually all musical situations.

How can I practise subdivisions?

I’m going to use some examples from my book Electric Bass – Improve Your Groove: The Essential Guide to Mastering Time and Feel on Bass Guitar. The first example features an eighth note subdivision, meaning each beat is subdivided into two.

eighth note subdivisions
Subdividing beats into two

Two is the simplest subdivision,  but this is not a simple rhythm. The rhythm features notes played on the beat and off the beat. In order to play the rhythm accurately you must be aware of which notes are on the beat and which are off the beat. Then you need to have a system for hitting the beats and the off-beats accurately.

If you’ve followed my previous posts then you’re probably already familiar with my system for counting beats and off-beats. I use the syllables Ta-KaTa is the beat and Ka is the off-beat. Try playing the example above slowly while reciting Ta-Ka. Make sure the notes played on the beat land on Ta and the off-beat notes land on Ka. If you’re not sure how to do this, refer to the video where I demonstrate this at 1m53s.

Subdividing into three

Have a look at this example. This is a bass groove with the beat divided into three. Listen to it in the video at 3m21s.

Triplet/shuffle subdivisions
Subdividing beats into three

When you subdivide a beat into three, there’s no longer a conventional off-beat as there is with eighth notes. When you divide a beat into three equal subdivisions you get a beat and two different places where you can place a note off the beat. The notes in this example that look like eighth notes are played with a shuffle feel which is a triplet feel.

The added off-beat subdivisions that you get when you subdivide a beat into three and four means that there are so many potential variations of rhythm, it would be impossible to even give an overview in just a single post. So please check out Electric Bass – Improve Your Groove: The Essential Guide to Mastering Time and Feel on Bass Guitar. In it you will find over 140 audio and written examples featuring these subdivisions played in a variety of styles. There are also five play along pieces featuring subdivisions of two, three and four to help you put this into practise.

Subdividing into four

When you divide a beat into four subdivisions, it creates a sixteenth note feel. Here is an example.

sixteenth note subdivisions
Subdividing beats into four

It may seem odd that this sixteenth note example feels less busy than the previous example that is subdivided into three. You might assume that more subdivisions means more notes, but that isn’t necessarily true.

The example above is a sixteenth note rhythm because there are three notes that can only be played if you divide the beats into four. Therefore you must feel the sixteenth note subdivision all the way through the example in order to really groove.

The most important thing to remember about subdivisions is that you must always feel the smallest subdivision all the way through any piece of music you play. Sometimes that will mean dividing the beats into two (eighth notes) and sometimes into three (triplets) and four sixteenth notes.

Please check out the book, if you want to study subdivisions in more detail. And remember, if you want to improve your bass groove, you need to think more about subdivisions.

3D Cover Image Improve Your Groove
Electric Bass – Improve Your Groove