An arpeggio is a chord played one note at a time instead of all at once. A C major arpeggio plays C, E and G in sequence, going up, down or in a set pattern. The word comes from the Italian arpeggiare, meaning to play like a harp.
What is an arpeggio, exactly? You have heard plenty of them. The rolling guitar intro, the piano figure that ripples under a verse, the synth line that pulses through a whole track. They use the same notes as a chord, just spread out in time.
That change in timing turns a block of harmony into movement. This guide covers how an arpeggio differs from a chord and a scale, four patterns you can play on a single chord, famous examples by genre, and how an arpeggiator in your DAW plays the pattern for you. If you want the theory underneath first, start with Music Theory for Artists, then come back and put the notes to work.
Arpeggio vs Chord vs Scale
All three use the same pool of notes. What separates them is which notes you pick and when you play them.
A chord stacks notes and sounds them together. A scale arranges its notes in ascending or descending pitch order. An arpeggio takes only the chord's notes and plays them one after another.
Chord | Scale | Arpeggio | |
|---|---|---|---|
Notes used | Root, third and fifth for a major or minor triad; other chord types use different combinations | Notes of the chosen scale | Only the chord's notes |
Timing | Together | One at a time, in pitch order | One at a time, in a pattern |
C major example | C + E + G at once | C D E F G A B | C, E, G in sequence |
Feels like | A block of sound | A ladder | A staircase with gaps |
The gaps are the point. The C major scale moves by whole and half steps. A C major triad arpeggio skips the scale notes in between, leaping between chord tones, which is why it sounds so clearly tied to the harmony underneath.
Every note in an arpeggio belongs to the chord. That makes it hard to hit a "wrong" note, and it is why arpeggios sit so well under a vocal. For the formulas behind the chords themselves, see Types of Chords: 16 Chord Formulas, Sounds, and Uses.
Add a seventh and you get a four-note arpeggio. C major 7 gives you C, E, G and B, which sounds softer and a little more open than the plain triad.
One Chord, Four Patterns
Take a C major chord and play it four ways. The notes never change. Only the order does.
Here is each pattern in guitar tab, using an open C chord (A string fret 3, D string fret 2, G string open, B string fret 1, high E open). Read each line left to right.
Up (C, E, G, C, E): low to high.
Down (E, C, G, E, C): high to low.
Broken (C, G, E, G): out of order, which gives the pattern a rocking feel.
Alternating (C, E, C, G): the root returns between the other notes, like a bass note answering the top.
On a piano, the up pattern is simply C, E, G, then C an octave higher, with the left hand holding the low C.
Pattern | Note order (C major) | Sound and feel | Good for |
|---|---|---|---|
Up | C E G C | Rising, hopeful, building | Intros, lifts into a chorus |
Down | G E C | Settling, falling away | Endings, softer verses |
Broken | C G E G | Steady, rocking | Ballads, folk, lullaby feel |
Alternating | C E C G | Driving, with a pulse in the bass | Fingerstyle, upbeat verses |
Change the rhythm and the same notes feel different. Straight eighth notes sound even and calm. A triplet grouping rolls forward. Try each pattern at a slow tempo first, then use the BPM Chart by Genre to find a speed that fits your style.
How to Use Arpeggios in a Song
An arpeggio is a texture, and a texture is a choice. You decide where the song needs motion and where it needs weight.
Here are the places they work best:
Under a verse. A picked or broken pattern keeps the harmony moving while the vocal stays clear. Strummed blocks would crowd it.
In an intro. Four bars of one arpeggio can set the key and mood before anything else enters.
Before a chorus. Switch from a broken pattern to a rising one. The upward motion signals that something is about to open up.
As a hook. A short arpeggio repeated against changing chords can become the part people remember. That is how many synth lines work.
Arpeggiate each chord of a progression and you hear the harmony in a new way. Take a four-chord loop from the Chord Progressions Guide for Songwriters and play each chord as a broken pattern across the bar. The progression stays the same. The song suddenly sounds quieter, or more urgent, depending on your rhythm.
Arpeggios also help you write melody. The chord tones are the strong notes, so a tune that lands on them at the start of a bar will feel settled. Add passing notes from the scale between them to make it sing. The walkthrough in How to Write a Melody That Sticks shows how to balance those two kinds of notes.
One caution: an arpeggio that repeats unchanged for three minutes will wear thin. Change the pattern, the octave or the rhythm when the section changes.
Famous Arpeggio Riffs by Genre
You can learn a lot by finding the arpeggio in songs you already know. Most of these are built on a repeating broken-chord figure, so listen for the same few notes cycling under the harmony.
Genre | Example | What the arpeggio does |
|---|---|---|
Baroque | Bach, Prelude in C major (BWV 846) | Repeating broken chords through most of the piece, ending on a block chord |
Classical | Beethoven, Moonlight Sonata (first movement) | Rolling triplet arpeggios under a slow melody |
Folk rock | Kansas, "Dust in the Wind" | Fingerpicked pattern that carries the whole song |
Rock | Eagles, "Hotel California" | Arpeggiated guitar chords in the opening |
Metal | Metallica, "Nothing Else Matters" | Picked chord figure that opens the song |
Pop and alternative | Coldplay, "Clocks" | Repeating piano figure that is the hook |
Synth and soundtrack | Stranger Things main theme | Pulsing synth arpeggio that defines the track |
Notice how different the moods are. The notes are the same kind of material, but tempo, instrument and rhythm change everything. A riff is a melodic phrase that repeats, and some riffs are arpeggios. For the wider idea, read What Is a Riff?
How a DAW Arpeggiator Works
A DAW arpeggiator turns incoming chord notes into a repeating pattern. Enable tempo sync to lock its rate to the project tempo. You hold C, E and G. It plays C, E, G, E, C, E, G, and so on.
DAWs such as Ableton Live and Logic Pro include arpeggiators. Placement and controls vary by DAW, but the logic is the same.
Add a MIDI track with a synth or keys instrument on it.
Insert the arpeggiator ahead of the instrument, so it receives your notes first.
Hold a chord on a MIDI keyboard, or draw the notes in the piano roll.
Pick a mode. Up, down, up-down, random and "as played" are the usual choices.
Set the rate. Eighth notes feel steady. Sixteenth notes feel busy and driving.
Set the octave range. One octave stays tight. Two or three octaves sound wider and more dramatic.
Adjust gate or note length. Short gates sound plucked and tight. Long gates blur together.
Capture the result as MIDI, if your DAW allows it, so you can edit individual notes later.
Many arpeggiators also have a hold or latch switch that keeps the pattern running after you release the keys. Use it, and your hands are free to change the filter or play something else.
An arpeggiator usually derives its notes from your input chord. A sequencer plays programmed events, and some tools combine both functions. With an arpeggiator, changing the chord changes the pattern at once. For the other side of that comparison, see What Is a Sequencer in Music? and What Is a MIDI File?
Frequently Asked Questions
What is the difference between an arpeggio and a chord?
A chord sounds its notes together. An arpeggio sounds the same notes one at a time. Both use identical pitches, so the difference is purely timing.
Is an arpeggio the same as a broken chord?
Close, but not identical. A broken chord is any chord played note by note, often in a loose order. An arpeggio usually means the notes run in a clear direction, up or down.
What is an arpeggiator?
An arpeggiator is a synth or DAW tool that plays the notes of a held chord one at a time in a pattern. You choose the order, speed and octave range, and can sync the pattern to your project tempo.
Do I need to know theory to use arpeggios?
You need to know which notes make up your chord. Beyond that, your ear does the work. Play the pattern, then change the order until it fits the song.
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