Bass Theory

Bass Guitar Theory

Struggling to create your own bass lines and grooves?

Thinking it’s time to go beyond TAB and imitating YouTubes and learn theory?

Excellent! So you look for resources and this is where it gets confusing:

Words like

  • “scales” (🐠?)
  • “keys” (🎹? 🔑? Key of a song?) 
  • “up/down” (↕️)
  • “notes” and “pitches” (🎵)
  • “Circle of Fifths” 🔄
  • “theory” (but mixing it up with: pitch reading 🎼)
  • “All Cows Eat Grass” (🐮) – and I really call 🐮💩 on that one!
  • WWH WWWHWHat? 

are thrown about without a plan.

Or, worse, this one that will take you back to square one: 

  • “you don’t need theory. Just play what you feel.”

Here are several reasons why bassists are notorious to be confused about the bass guitar notes:

Can you relate?

Let me start by saying, it’s not your fault. I am writing this very blog post to assure you that it’s not you and there is nothing wrong with you.

You see, sometimes a little knowledge is a dangerous thing and many who have cracked open a theory book “think” they know and are quick with advice, using a lot of terms – as if that meant something – but only increase the confusion. 

But it does not need to be this way. 

Music Theory on the bass fretboard is actually quite accessible if you do the following things: 

The better way!

Then you got yourself a beautiful package that makes sense and really relates to the bass!

 

In very broad strokes that means...

Why this is the best approach to Bass Theory

Most bass players who have been playing songs for a while begin to realize that there are sounds that tend to go with shapes on the fretboard. Certain songs seem to use these sounds/shapes over and over. Unfortunately, if people learn mostly through TAB without ever understanding how the fretboard works that can be quite elusive since their fingering may not reveal the shapes!

But more often than not there is a sense that recurring shapes and sounds are at play. 

If such a player wants to learn theory and finds a traditional or classical theory book they are often asked to forget everything they know just to start with reading dots on lines. This approach asks them to forget everything they know and start from scratch. It’s frustrating and counterintuitive.  

To me this is such a lost opportunity because if I just show you how the fretboard works, how intervals work, and how these shapes you have been playing for years are nothing but common theory concepts that follow certain rules – you will fly! It’s empowering because you realize how much you already know rather than being forced to start from scratch. 

Below you can learn a bit more about my approach to theory. But whatever you do, I want to encourage you to learn bass theory. A world of opportunities will open up once you see how theory on the fretboard, taught through shapes, is accessible and actually makes sense. Then all the above terms will no longer throw you. And most importantly, you can create your own grooves, fills and improvisations. 

Speaking of which, the best way to remember a theory concept is to improvise with it. 

music theory for the bass player

Bass Guitar Notes

Want to learn the Bass Guitar Notes?

  • Bass Guitar Notes are easy to learn, but there is a trick to it:
    The trick is to start by understanding the fretboard.

High and Low Bass Guitar Notes – not as easy as it looks!

  • Notes get higher sounding the closer you get to the bridge.
  • Notes get higher sounding as strings get thinner.

So, so far we have identified two directions on the bass where notes get higher:

One thing that understandably trips up beginners is that they should really say I play “UP THE NECK” when notes are sounding higher and “DOWN THE NECK” when notes are sounding lower. When musicians talk “high and low” they mean sonically, not in space. Our Music Theory Cohort students below demonstrate: it’s exactly the opposite as in space!

 

OK – so the above is true when staying on individual strings, but here is where it gets tricky.
When I start playing between strings, the direction can reverse… (go ahead and play these notes and listen:)

Notes are still getting higher (sounding) as I go towards the headstock:

Until I hit the same note:

And then they get lower (sounding), even though I am still going toward the headstock:

Though I am sure you’d agree that unless there is a good reason for this big jump, staying on the same string is much more economical here:

Same bass guitar note – many locations!

Of course, this is because bass guitar notes show up on the fretboard more often than just once: here for example, G:

 

Here, look at the same notes written out as TAB:


This is important to understand because it is unique to fretboard instruments such as the bass!
On the piano I have this same note only once:

So how do you know when to use which one?

When you are just starting out and exploring the bass, it does not matter which one you use – it’s just important that you get used to finding them. As you keep progressing, you want to go beyond the single note hunt-and-peck method though. 
This is because it’s actually harder to reinvent the wheel each time to find a note.
This is an immensely important point that beginners often miss: Music always happens inside a context – if you recognize the context (ie: keys, chords, scales) you will have a much easier time of it all! 
So learning these contexts (AKA music theory, songs, grooves…) will make all this much more manageable.

So, that was a bit about the bass fretboard. Next, I’ll tell you about notes. And then I’ll show you a really cool drill!

How do notes work?

This is often where the image of a piano keyboard comes in handy because it is so conveniently color-coded:

You see the white and black keys

and you can easily see the closest distance between notes. The closest distance is called a “half step,” and on the piano, half steps are neighboring keys.

Half steps can occur between a white and black key (turquoise arrows show two examples) but also between certain white keys (E/F and B/C) – the pink arrows.

The bass is pretty neat for half steps, too, though, as it’s just neighboring frets on the same string:

And whether the half step is between “white and white key” (pink) or “white and black key” (turquoise) – well, on the bass the shift just looks the same!

Note Names

The white keys are named by the letters A through G of the alphabet.

All of the white keys can be made higher by a half step which is done by adding a #:

C# D# E# F# G# A# B#

Some of these now turn out to be black keys (C# D# F# G# A#), but some are still white keys:
E# and B#!

What goes up must come down, right?

Right!

If I want a note to sound a half step lower, I add a flat sign:

Cb Db Eb Fb Gb Ab Bb

Same deal, some are black keys: Db, Eb, Gb, Ab, Bb

Others are white keys: Fb, Cb

Find a few of these notes on the keyboard, to practice.

Multiple Personality notes

So, each note has a few names, then, with most having two names (D#/Eb or C/Cb), but some only one (G, A and D).

There is also another level of this “sharps” and “flats” business which is called double sharps and double flats, but you can leave that for another day. For now, just appreciate that each letter name can have a natural (no sharp or flat), sharp and flat version.

Notice that on the piano that is easy to see.

On the bass fretboard, not so much:

(not all note names are listed to keep it neat)

[this is an excerpt from our Music Theory for the Bass Player Wallchart, all rights reserved]

bass guitar notes Ariane Cap notefinder fretboard all notes

Bass Players need to know the note names

Naming notes is often not popular with bassists who use a lot of TAB. And I get it – the TAB tells you where to press by fret number and string, so it seems to be all that’s needed to learn a song. However, just like coloring by numbers, it won’t teach you to create your own bass lines.

Consider this: naming something is the first step to mastering it! That is definitely true for knowing where sounds are on the fretboard, how to communicate with others about them, and, most importantly, how to get what you hear inside “out” onto the fretboard!

Once you learn to name them and learn the ways they relate (“theory”), it’s like you can start using words and sentences to tell your own stories rather than only learn those from others by heart.

Let’s Practice on the Bass

What follows are two of our many signature drills to learn the notes. We have many, many more.

March up a string

Let’s march up the E string:

E F F# G G# A A# B C C# D D# E

Now go up the A string and see where the notes start catching up with each other:

A A# B C C# D D# E….

The sequence repeats! This is – by the way – called a chromatic scale – I am proceeding up the bass strings in half steps. I started on the E string and marked out some that would then repeat on the A string (and even on the D string). These sequences of course will repeat over and over.

PRACTICE TIP:

  • March up your E string playing each note saying sharps – E F F# G G# etc – and then descend using flats: E Eb D Db C etc!
  • When that gets easier go up using flats – E F Gb G Ab A etc – and down using sharps: E D# D C# C etc!
  • Do this with every string of your bass!

There are many many more variations of this drill in my book “Music Theory for the Bass Player”. Do these often – they are gold and get easier fast. Spend a few minutes each day, short periods of time are best. Just five minutes! In a few days or weeks, those note names will become yours!

Awesome Bass Guitar Notes Drill: The NOTEFINDER

This drill is awesome: Find a certain note, let’s say G, on every single string. So, G on the E string, then A string, then D string, then the G string. 

Mark down the fret numbers:

On the diagram you see that notes are either offset by 7 or 5 frets between strings. – that’s a good distance to get under your belt! 

bass guitar notes Ariane Cap note finder fretboard

Pick a note a day and you will know the foundation of your bass guitar notes in no time. In our Courses we practice the notefinder in many fun variations, with improvisations, through the cycle, by using only certain fingers and more. It’s really fun, like a gigantic sudoku, just with strings and frets! Using a track while doing so makes it feel like a groove rather than a drill! In our Flagship Music Theory for the Bass Player Course, we drill every single note all across the fretboard, in a variety of different styles, meters and feels. And that’s just a small part of what we do there! 

We have many more drills, but I will leave it there. Have fun exploring your fretboard, and make those bass guitar notes yours!

Learn bass lines watching videos

It's great to learn bass lines via video but watch out for this

When you watch a video to learn bass songs you may sometimes get turned around. Well, it’s because you are watching everything mirrored. Yes, of course, duh. But I don’t fault you for getting a bit cross-eyed when it’s all new to you!
When you are struggling to figure out how and where to place a finger of the fretting hand (also, what finger?), pluck the string you are actually fretting (I know!), all the while trying to figure out whether it’s the buzz that makes it sound off or whether it’s because you actually ARE off… also flying fingers and rhythm something something… 🤪

Take a breath. I can help.

First of all, make sure you are plucking the string you are actually fretting. Trace the string with your eyes. OK. We got drills to help with this, but for now, just keep an eye on that.

When watching a video tutorial or another player to learn bass songs, you have to mirror what you see in your mind to translate it to your bass. And you are mirroring two ways:
vertically & horizontally!

Take a moment to take this in. Our Cohort Student Walter is demonstrating for us:

Learn the fretboard

But for you, when you are looking down from above, it will look like this: 

learn the bass fretboard arisbassblog

When Walter looks down on his fretboard, he will be plucking the third string from the top (“top” meaning closest to him!). The left/right (vertical) mirroring is intuitive for most, but it’s easy to forget about that horizontal mirroring where up becomes down! 

Look at this again, side by side:

bass guitar notes Ariane Cap right handed

My view on vertical diagrams to learn bass lines

Some diagrams try to “help” by standing up the fretboard/angling it by 90 degrees, like so: 

 

I experimented with this layout for a bit and while some students initially preferred it, it would not take long until the drawbacks of this view became apparent:

  • This is not how you hold the bass. 
  • If you are used to reading language from left to right, reading from top to bottom is counterintuitive.
  • And the main reason: This is not what it looks like when you look down on the fretboard.   
  • Even proper TAB works sideways: 

  • For best visualization practice and good technique, sideways is the way I recommend!

Tips to learn bass lines from videos

  • Don’t forget to mirror up/down, not just left/right! Look for the thickest string and count from there!
  • Get used to reading proper diagrams. Drawing out your own is one of the best ways to learn!
  • When reading TAB look for sideways versions and avoid vertical diagrams.
  • You can download our pattern paper for four/five/six string basses below, for right-handed as well as left- handed players! Our Resources page has even more options!
  • If you get confused when looking at the diagrams, imagine the paper sliding off your music stand straight under your bass. Match up the thick strings.  

Left-handed?

Here is the view for you:

bass guitar notes Ariane Cap left handed

Kudos to our left-handed players! We have noticed that they do exceptionally well, especially in our Pattern System, where you write out a lot of diagrams for practice. They excel at this because they have to do this constantly anyways so they get really fast at this! 

Promised downloads

* Both Vincent and Walter have Marleaux basses that have a “zero fret”, in case you are wondering about that extra fret underneath the nut. 

 

Last, but not least: 

  • Get our books (US) and wallcharts! We teach theory and the fretboard via thought-out diagrams. We do mental practice, prepare you to read sheet music, play Jazz and so much more.

    Ari's Theory wallchart Ariane Ari Cap arisbassblog