What is an arpeggiator?
An arpeggiator turns a chord into a pattern: instead of every note sounding at once, it plays them one at a time, in order, on a steady rhythm. In Veena, the free AI DAW in your browser, you ask CoProducer for the arpeggio and it writes the notes as a MIDI part you can edit.
What an arpeggiator controls
A chord of C, E and G becomes C, E, G, C, E, G, and every arpeggiator is the same idea with three settings turned differently:
| Setting | What it does | Typical choices |
|---|---|---|
| Direction | The order the notes are played in | Up, down, up then down, random |
| Rate | How fast the notes come | 8th, 16th or 32nd notes |
| Range | How many octaves the pattern climbs through | One to three octaves |
The chord decides which notes play, so the pattern follows your progression: change the chord and the arpeggio changes with it.
Where you hear arpeggios
- Synthwave and electronic: a plucked arpeggio running 16th notes over a pad, the engine of the track.
- Chiptune: a fast 32nd-note arpeggio that makes one voice sound like a full chord.
- Guitar and piano: the same idea played by hand, as fingerpicked or broken chords under a verse.
- Bass: a bassline that arpeggiates each chord's notes instead of sitting on the root.
Arpeggiator in Veena
Ask for it in the sentence you would say to a producer: "a Bright Pluck chord arpeggio in 16th notes cycling each chord's notes" or "Retro Pulse Bass arpeggiating the chords". CoProducer reads your chord progression, writes the pattern in your key and tempo, and puts it on its own track, so you can mute it, change its sound or move it to the chorus only.
Because it is MIDI, every note is a block in the piano roll: stretch it, delete it or drag it up an octave. Ask for a change in plain words, "make the arpeggio 32nd notes in the chorus" or "play it down instead of up", and one Ctrl/Cmd+Z undoes it.
See what MIDI is, what a chord progression is, the AI melody generator and the synthwave guide, plus the rest of the music production glossary. Make an arpeggio free.
Try this in Veena
Make a 104 BPM synthwave track in A minor over Am, F, C and G, one chord per bar: a Bright Pluck arpeggio in 16th notes that climbs each chord's notes and falls back down, a Retro Pulse Bass on the chord roots, a Warm Pad holding the chords, and tight drums with the snare on 2 and 4. Intro 4 bars, then 16 bars
Frequently asked questions
Does Veena have an arpeggiator?
Yes, in the way that matters: ask CoProducer for an arpeggio and it writes the pattern as real MIDI notes on its own track, in your key and tempo. Veena is an AI DAW with a personal music producer built in. Describe the song you want and CoProducer builds it with you — beats, chords, melody, arrangement and mix — as real tracks you can edit, mix and export. Free, in your browser.
What is the difference between an arpeggio and a chord?
A chord plays its notes together; an arpeggio plays the same notes one after another. The harmony is identical, but the arpeggio moves, which is why it carries rhythm and motion. In Veena, ask CoProducer to 'arpeggiate the chords in 16th notes' and the Warm Pad's held chord becomes a moving line on a plucked sound.
What notes does an arpeggiator play?
The notes of the chord you give it, nothing else. Hold C, E and G and it cycles C, E and G, then repeats, in a direction and speed you choose, often across more than one octave. In Veena, CoProducer reads the chords already on your timeline and writes the arpeggio on those notes, so it always stays in key.
What is a good arpeggiator speed?
Eighth notes feel relaxed, 16th notes feel driving, and 32nd notes give the fast, shimmering run common in chiptune. Match the speed to the tempo: the same 16ths feel calm at 80 BPM and urgent at 140. In Veena, name the note value in your request, such as 'a Bright Pluck arpeggio in 32nd notes', and change it later by asking.
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