So far we've been building triads in a neat little stack: root on the bottom, third in the middle, fifth on top. But you don't have to play them that way. A C major chord is C, E, and G, and it's still C major no matter which of those three notes is on the bottom.

When you rearrange a chord so that something other than the root is the lowest note, that's an inversion.

A triad has three notes, so there are three possible arrangements:

Root position — root on the bottom. This is what we've been doing.

C — E — G

First inversion — third on the bottom.

E — G — C

Second inversion — fifth on the bottom.

G — C — E

All three of these are C major. Same notes, same chord name, different bottom note. Play them if you can. They each have a slightly different flavor, but they're all unmistakably C major.

In pop music, lead sheets, and chord charts, you'll see inversions written as slash chords:

• C/E — C major with E in the bass (first inversion)
• C/G — C major with G in the bass (second inversion)
• Am/C — A minor with C in the bass
• G/B — G major with B in the bass

The note after the slash is the bass note. That's it. When you see F/A, it means "play an F major chord, but put A on the bottom."

You might also see slash chords where the bass note isn't part of the chord at all, like C/Bb or Am/F#. These aren't really inversions in the traditional sense, they're just a chord over a specific bass note. You'll run into them, and they work the same way: play the chord, put that note in the bass.

Honestly? If you're playing solo, you might not think about inversions much. You play whatever shape your hands land on. But inversions become really useful in a couple of situations:

Smooth bass lines. When you're moving between chords, inversions let the bass walk stepwise instead of jumping around. Instead of C → F → G with the bass leaping C → F → G, you could play C → F/A → G with the bass walking C → A → G. It's a small thing that makes a big difference. Sounds more connected, more intentional.

Playing in a band or arranging. If the bass player (or a synth bass, or the left hand on a piano) is already covering the root, other instruments are free to play inversions or even leave out the root entirely. A guitarist playing just the E and G of a C chord while the bass holds down the C? That's a perfectly valid voicing, and it often sounds better than everyone piling onto the root.

Writing in a DAW. Same idea. If your bass track has the root locked in, your pad or keys don't need to double it. Spread the notes out, use inversions, drop the root from upper voices. Things open up.

While we're on the topic of rearranging notes: the notes of a chord don't have to be right next to each other, either.

When all the notes are packed within a single octave (like C-E-G or E-G-C), that's called closed voicing. Everything is as close together as it can be. This is how we've been writing triads so far.

Open voicing is when you spread the notes across more than an octave. Take that same C major chord and put the E up an octave: C — G — E. Or drop the G down: G — C — E with the C and E an octave higher than the G. The notes are the same, the chord is the same, but it sounds wider and more spacious.

In practice, you're already doing this whether you know it or not. A standard open G chord on guitar has the notes G-B-D spread across all six strings and multiple octaves. That's an open voicing. A barre chord with everything crammed into a few frets is closer to a closed voicing.

There's no rule about which is better. Closed voicings sound tight and punchy. Open voicings sound big and full. Mix them depending on what the music needs.

Some theory courses get deep into inversion analysis: Roman numerals with little numbers, figured bass, voice leading rules from the 1700s. That stuff has its place, but it's not what you need right now.

What you do need to know:

• A chord is the same chord regardless of which note is on the bottom
• The bottom note changes the sound, especially in the bass
• Slash chords tell you what note to put in the bass
• When someone else is handling the root, you have more freedom with how you voice the chord

That's the practical takeaway. If you ever want to go deeper, the resources are there, but for now this is enough to read a chart and make smart decisions about how you arrange your parts.

• Secrets of Songwriting - The Use of Inversions in Pop Songwriting - brief article with some practical takeaways.

• David Bennett Music Theory - Songs that use Inversions - Cool video that has lots of practical examples!

On your instrument: take a chord you know well and try playing it in all three positions. If you play guitar, try different voicings up the neck. If you play piano, move the bottom note up an octave to get first inversion, then again for second. Listen to how the character changes even though it's the same chord.

Look at some chord charts for songs you know and see if any of them use slash chords. Now you know what they mean.