Arpeggionome Pro | matrix arpeggiator 4+


    • 4.6 • 46 Ratings
    • $9.99

iPad Screenshots


An expressive, matrix-controlled arpeggiator designed to play with your thumbs. Control super fast arpeggios with precision, and apply pitchbend, tremolo, and vibrato with the iPad’s accelerometer.

• "Arpeggionome makes amazing patterns in arrays of pulsing circles" (Peter Kirn, Create Digital Music)
• "A masterpiece in design and functionality" (
• Rated as the "Most Creative MIDI App" by
• "Arpeggionome Pro is a very very powerful arpeggiator that can really take your music to the next level" (Chip Boaz,
• "If you like great Arpeggiators, this is it!" (Jordan Rudess)

Design an arpeggio pattern with various knobs and buttons, then move up-and-down the matrix to set its speed, or left-and-right to set its pitch. Tilt the device to control volume and pitchbend, or shake for vibrato. Arpeggionome Pro also features a robust MIDI implementation, allowing you to control other iOS music apps, external gear, and computer software like never before**.

*An arpeggio is a musical technique where notes in a chord are played in sequence, rather than together.

** MIDI input and output is recommended for iPad 2 and later.

Supports MIDI, Ableton Link, Audiobus 3, and Inter-App Audio.

Please note, the App Preview video features Arpeggionome Pro controlling Animoog, an incredible synthesizer app created by Moog. Arpeggionome Pro does a have a built-in synthesizer, but... it doesn't sound as good that :]

What’s New

Version 1.3.0

This app has been updated by Apple to display the Apple Watch app icon.


Ableton Link is a new technology that synchronizes beat, phase and tempo of Ableton Live and Link-enabled iOS apps over a wireless network. It's awesome. Go to Settings>Ableton Link Settings for more info.

Audiobus 3 brings MIDI support to Audiobus, and Arpeggionome Pro is good to go :]

Arpeggionome Pro now supports 64 bit architectures. Yee.

Arpeggionome Pro has a new setting called 'Matrix Mode', which adds dotted note values to the Performance Matrix.

To try it out, go to Settings >Interaction Settings and set Matrix Mode to 'Halves+Dotted+Triplets'. You'll notice the matrix now has two columns of squares, triangles, and dots.

■ Rows with squares play rates that are perfect halves of a measure — starting at 1/2 at the bottom row.

● Rows with dots play rates that are the dotted values — i.e 1.5x the length of the square row above.

▲ Rows with triangles play rates that are triplet values — i.e. 0.33x the length of 2 square rows below.

In Settings>Interaction Settings, you'll also find a new button at the bottom of the list called "ALT Interaction Settings". This is an alternative interaction state that I recommend trying. It's a bit more difficult to control, but I find the results quite interesting.

Compared to the "Default Interaction Settings", it uses the new Matrix Mode setting and disables Retrigger for all parameters.


In previous versions, when listening for MIDI Clock on the Arp MIDI In port, Arpeggionome Pro read the MIDI clock twice, and therefore went twice as fast as it should. Fixed now.


Hey, it's been a while! The last time I looked at the Arpeggionome Pro code base was over 2.5 years ago! Time is weird.

In any case, I'm really glad to finally get this long overdue update of Arpeggionome Pro out. And I'm especially excited about adding Link and the new Matrix Mode setting.

By supporting Link, Arpeggionome Pro has actually become more playable, and perhaps in a not-so-obvious way. I'll explain…

As you may know, Arpeggionome Pro is designed to play super fast arpeggios. Further, it's designed to be held in your hands in portrait mode, so you can quickly perform changes with your thumbs. Also, under the hood, all changes you make are quantized — allowing you to anticipate time by touching a parameter early, so the change happens at exactly the right time.

This is great, and works very well… However! It's always been a challenge to start the sequencer from not playing to playing. You could press the play button and just let it run, but if you wanted to control starting and stopping in a more expressive way (which I very much prefer!), it gets a bit more complicated. That first touch would always happen the moment you touched, but every other touch would be quantized. Subtle difference for sure, but definitely weird.

Ideally, what should happen is that all touches are quantized, even that first one. So that, when you stop and start playback, it starts quantized, just like the other touches.

So, something exciting… This is exactly how it works now! And it's all thanks to Ableton Link :]

Basically, at some point after releasing Arpeggionome Pro, I realized how I missed an opportunity to have dotted note lengths on the Performance Matrix — it launched with just halves and triplets.
Yes, I could have just updated the app… but since I try to be super strict about not changing UI after an application has been released, I just accepted it and moved on (see Fugue Machine and Link to MIDI).

However… now that I'm here and revisiting the project, I figured out a way rationalize adding it… by simply burying it in an optional setting. I think I'm ok with this :]

Ok ok, that was many words. Thanks so much for your support and interest over the years (over 4 now!) and please reach out if anything comes up.

Ratings and Reviews

4.6 out of 5
46 Ratings

46 Ratings

Michael Lohmeyer ,

A great take on the ARP

This is just a great overall arpeggio app. Take the time to go through the built in documentation (which was simple but clear) and you will be rewarded with a very useful tool for inspiration and playing music. Or just dive in and have fun. It isn’t hard to get good results in minutes.

I used it to run synths on my iPad as well as hooked it up to synths through my DAW on my Mac using USB Midi and it was a joy to use.

There are many different ways to make an arp tool. This is one of the more unique ones I have tried and is a welcome addition to my music gear. My only complaint is no AU support. But it is still a 5 star app regardless of that.

Sean & Daddy ,

Fun, but missing a very basic control option.

Had a lot of fun playing with this and showing it to my son, but then hit a brick wall that ruined it for us. I was trying to show him how the Stranger Things theme was made and in setting up the basic arpeggio of C2,E2,G2,B2,C3 I found that it was basically impossible in Arpeggionome Pro. I can set the key to Ionic, the number of notes to 5 and the note pattern to up and down, and the note steps to 2. But that does a pattern of C2,E2,G2,B2,D3, not C3. Just one note off. It’s using steps instead of actually trying to play the chord. And as far as I can tell, there’s no way to specify exactly which notes are played in your arpeggio pattern. You can only control it with the steps and scales. So there’s no way to actually get that exact chord to play. Ironic that Arpeggionome Pro can’t play probably the most well-known arpeggio of the last 10 years.

polarpaul ,

Update Adds Link and Audiobus 3 Support

A very good arp for live play and can now be easily integrated with other MIDI apps and Link support allows it to easily sync and play in time. The app supports a wide variety of scales, controls for octaves, notes, step distances, playback styles, gate, and velocity.

Adding the app to an Audiobus 3 MIDI setup allows you to add MIDI effects to further transform your playing so you can do chords or have multi-timbral setups.

App Privacy

The developer, Alexandernaut, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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