ChordBud 2 is a MIDI chord sequencer where you can create unique chord progressions very quickly.

It has a very powerful music theory engine under the hood with +40 scales. You can select the scales you want to work with and see them from top to bottom on one screen. From left to right, you can see the chords inside those scales. You can either compare the scales or borrow chords (modal interchange) from each other!

By default, it presents all the chords inside a scale for the key you are working with which you may change at any time. But in the settings menu, you can also select the chord progression you want to work with and you can see the chords in the progression.

You can work with as many patterns as you want! You can set different keys, scales, and chord progressions for each pattern. You can copy/paste/delete them by long-pressing them. Patterns are triggerable with the MIDI CC messages. You can build automation or create a song mode with that powerful feature.

You are not limited to just the triad chords! The powerful music theory engine lets you modify your chords with add/sus/6/7/9/11/13 and more chord mods! After adding a chord to your timeline, just tap it to present the chord editor. You may change the chord mode, velocity, octave, inversion, key, and division of the chord. You can make your edits while the sequencer is playing, so you can hear your changes immediately while you are working.

In the timeline, you can move your chords to change their position. Also, you can drag them from their right edge to change their duration. You can pinch to zoom in or out in the timeline. If you want to position your chords more precisely, you can zoom in and work in the subdivisions.

ChordBud 2 offers its core components for free on Github. You can fork them to create your own music app! The standalone app's MIDI layer is powered by the open-source AudioKit framework.

Note: ChordBud 2 is a MIDI sequencer app. It does not produce sound itself. You need an audio app in order to get sound. Just route ChordBud 2's MIDI Out to your audio app's MIDI in and arm the sequencer.

What’s New

Version 2.3.2

This version adds the Bluetooth MIDI capabilities.

Ratings and Reviews

3.6 out of 5
14 Ratings

14 Ratings

Trill.Wa$abi ,


I just purchased this app a few days ago and was frustrated it did not have the delete button in 3rd party apps such as daws. Low and behold I come here to write a review with the suggestion and there’s an update today with the very request. Wow! That was fast 😁

Antsdad1967 ,

Updated review

The 2.0 update with delete function solves my previous issue. Thanks for the quick update. Great app, great support !

Developer Response ,

You can check out the v2.0 :)

hilltyler89 ,

None of these apps work in beatmaker 3

No matter what I try these apps won’t let you record in beatmaker 3. I bought the bundle to use in beatmaker 3 midi fx. It will let you hit play and the apps will work with whatever sound your using but no matter what it won’t record. Your apps say compatible with beatmaker 3 but that isn’t so. Would like my money back being your apps are useless in a iOS DAW

Developer Response ,

BeatMaker’s MIDI AUv3 recording is tricky. You can do it with another tool called MIDI Route by AudioVeek. You basically cannot record any other MIDI AUv3 without that technic. That’s not ChordBud’s failure. You can find some tutorials on youtube about that as well. It would be great if you can update your rating, thanks!

App Privacy

The developer, Cem Olcay, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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