So far, we’ve focused on major and minor chords, which get their happy or sad sound from a combination of three different notes. Power chords are different. They strip things down to just two essential notes: the root and the fifth.

For example, a G major chord is made of G, B, and D. A G power chord is just G and D. By leaving out that middle note (the third), the chord loses its major or minor quality. What’s left is a sound that’s direct, ambiguous, and punchy.

On the ukulele, the easiest way to play a power chord is by using a movable two-finger shape. Let's make an A5 power chord. Place your index finger on the 2nd fret of the G string (that's an A note) and your ring finger on the 4th fret of the C string (an E note). You only strum these two strings.

That's it. That shape is your key to playing power chords all over the neck.

The best thing about this shape is that it's movable. The note your index finger plays is the root, which gives the chord its name. If you slide the whole shape up two frets, so your index is on the 4th fret of the G string, you're now playing a B5 power chord.

Slide it down so your index is on the 1st fret, and you have a G#5. With one shape, you can play a power chord for every note on the G string. This simple pattern unlocks the entire fretboard.

This powerful, simple sound is the backbone of rock, punk, and metal music. When you play an electric guitar with distortion, full major or minor chords can sound muddy and chaotic. Power chords, with their clean two-note structure, stay crisp and defined, delivering a heavy, driving rhythm.

Let’s try a simple rock progression. It’s one of the most common in music: A5, D5, and E5.

1. A5: Index finger on the 2nd fret of the G string.
2. D5: Slide that shape up so your index finger is on the 7th fret of the G string.
3. E5: Slide it up two more frets, so your index is on the 9th fret of the G string.

Try moving between those shapes. Strum each one four times and then switch. You'll hear a sound that’s instantly recognizable from countless rock songs. By mastering this one shape, you've added a whole new dimension to your playing.