Chat with us, powered by LiveChat
Home UkuleleTutorials Ukulele Keys And How To Understand Them

Ukulele Keys And How To Understand Them

The ultimate guide arrived to ULTP!

by Jennifer VanBenschoten
electric ukulele

Are you ready to broaden your knowledge of music? Let’s talk about ukulele keys! One of the great things about playing the ukulele is that it makes learning music theory more accessible and easier than other instruments. Today we’ll give you a lesson on basic music theory when we talk about ukulele keys.

Ukulele Keys: The First Steps

Tuning Your Ukulele

The first thing we need to do before we talk about ukulele keys is to make sure that our ukuleles are tuned properly. You’ll see why later in this article, but if you have a soprano, concert, or tenor ukulele, make sure that it’s tuned to G-C-E-A. If you have a baritone (we’ll talk about baritone ukulele keys at the end of the article), you’ll need to make sure that your instrument is tuned to D-G-B-E, like the bottom four strings of a guitar. 

What’s a key in music, anyway? 

To put it simply, keys in music are the scales that are used as the basis for each piece of music. You’ve probably learned at least one scale on your ukulele, so let’s take a look at scales and find out more about them and how they function in music.

A scale is simply a set of notes with a pattern of half steps and whole steps between them. For the basis of this article, we’re going to look at music theory as it was created and used in Baroque and Classical European compositions. 

The two most common types of scales you’ll see in music theory are major and minor. To create each scale, you start with one root note (sometimes called the tonic) and then add other notes at different intervals, or steps. If you think about what a piano keyboard looks like with the white and black keys, you’ll be able to easily visualize the difference between a whole step and half step between tones.

Major and minor scales are created using set patterns of whole and half steps between notes of the scale. A major scale pattern is: whole step – whole step – half step – whole step – whole step – whole step – half step. If you need help visualizing this, find a keyboard and locate middle C. Then play just the white keys for an octave (eight notes). That’s your C major scale. 

A minor scale pattern is: whole step – half step – whole step – whole step – half step – whole step – whole step. For the sake of simplicity, we can play the A minor scale by using just the white keys on a keyboard and starting with the A above middle C. Play those notes, and you’ll hear what a minor scale sounds like.

Every major scale and key has a relative minor. That is, the same notes, but played in a slightly different pattern of whole and half steps. 

How can you tell what key you’re playing in?

If you look at a piece of sheet music or a piece of ukulele tablature with sheet music, you’ll notice a couple of things. First, you’ll see a large symbol at the beginning of each line of sheet music – this is the G clef which signifies the upper range of notes on a keyboard. The second thing you’ll notice is a series of symbols that look like hashtags or funky lowercase letter b’s. These symbols are the sharps (hashtags) and flats (funky lowercase b’s) that make up the scale of the key that the music is written in. 

Remember that each key is related to the scale that uses those same sharps and flats, and you’re on your way to understanding ukulele keys!

Now that you understand a little more about scales and ukulele keys, let’s learn about keys and chords. Sticking with the key of C major, with no sharps or flats, that means that every chord you’ll play on the ukulele in the key of C major will have…no sharps or flats! Your basic ukulele chords in the key of C major on a G-C-E-A ukulele will be: C major, D minor, E minor, F major, G major, A minor, and B diminished. You don’t usually see a lot of popular songs using that B diminished chord, but the rest of those chords sound pretty familiar, don’t they?

You can make dozens of chord progressions in the key of C major using those chords, and they’re probably some of the easiest chords to play on the ukulele. All of these chords are made up of notes that are found in the C major scale with no sharps or flats. 

What Key Is the Ukulele Tuned?

Knowing all of this, we can now go back and say that any ukulele tuned G-C-E-A is tuned to the key of C major. But that doesn’t mean that you can only play songs in the key of C major! The ukulele is an incredibly versatile instrument and you can play pretty much any song in any key on a ukulele. All it requires is a willingness to learn the different chords on the ukulele. 

If you have a baritone ukulele, your ukulele will be tuned D-G-B-E in the key of G major. This means that the G major chords will be: G major, A minor, B minor, C major, D major, E minor, and F# minor with a flat 5th. While you probably won’t be using that F# minor with a flat 5th so much in your chord progressions in the key of G major, the rest of those chords are pretty easy to learn and play. 

Changing The Key Of A Song On The Ukulele

Since many of us ukulele players sing along to our strumming or accompany other people who sing, sometimes it’s good to know how to change the key of a song so that it will be easier for someone to sing. Not everyone who sings has the same vocal range, and you might need to shift the key of a song now and then to make it more accessible for someone to sing. 

One of the easiest ways to do this is to use a capo, a small clip that you attach to your ukulele fretboard. Each fret is half a step on the musical scale, so if you want to change the key of a song in C major to D major, you would clip the capo on the second fret. 

Read more: Ukulele Jam Sessions!

Do you want to learn more about all the chords you need to play any song on the ukulele in any key? You’ll find dozens of great courses as a member of Uke Like the Pros! Learn about chord progressions, basic music theory, and so much more! Join today and browse all the courses to take your ukulele journey to the next level.

Related Articles


Peter January 19, 2023 - 9:40 pm

Oops, G-C-E-A can be either a Cmaj6 chord (CEGA) or an Amin7 (ACEG). Either chord can be used in the keys listed in my previous post.

Peter January 19, 2023 - 9:41 pm

Correction: Is an ‘ukulele tuned in the key of C Major? You can certainly say that an ‘ukulele is a “non transposing” instrument. This means that the open C string is the same note as C on the piano. This is not the same as saying “…any ukulele tuned G-C-E-A is tuned to the key of C major…” As an example, when you strum the open strings the chord you play could be called an Am7 (ACEG), and yes this chord can be used when playing in the key C major, but it can also be used in the keys of A minor, F major, E minor or G major.

Mike Stolz January 21, 2023 - 4:22 pm

Thank you for this brief and understandable explanation of music theory. i just started looking into this and found it overwhelming on other websites. maybe i was biting off more than i could chew. lol


Leave a Comment

Translate »