Work with unlimited tracks

  • PolyBud is a multitrack polyrhythmic sequencer.

    You can add as many note or MIDI CC tracks as you want.

    Each note track has the note, velocity, gate and ratchet modes.

    The MIDI CC tracks are great for modulating synth parameters.

    Also, you can assign different MIDI Channels to the tracks for controlling different synths.

    You can create unlimited patterns and you can create unlimited steps per pattern.

Add unlimited tracks.

Create polyrhythmic sequences

  • You can assign different number of step lengths to the each mode.

    Setting different step lengths would introduce immediate polyrhythmic results.

    Even with less amount of step lengths you can create long, polyrhythmic sequences.

    Each note and CC track can run in different rates for polyrhythmic variations.

Polyrhythmic patterns.

Always get musical results

  • PolyBud's music theory engine offers more than 110 scales.

    You can also use your custom scales that you created in ScaleBud 2!

    Each note track share the same key/scale pair so they always produce musical results.

    Keys and scales could be changed in realtime while the sequencer running.

Music theory engine.

Take advantage of the AUv3 Plugin

  • PolyBud runs as standalone app as well as AUv3 MIDI Plugin.

    You can create AU presets and use AU parameters of the AUv3 plugin.

    PolyBud offers multiple AU parameters where you can control or even automate every single parameter.

    The standalone version of PolyBud supports Ableton Link.

Multiple AU parameters for automation.

Download for iOS

Open source

PolyBud offers its core componets on Github.
They are all shared libraries for iOS, macOS and tvOS platforms, written in Swift.

Music Theory

A music theory library with Note, Interval, Scale and Chord representations in Swift enums.


Fully custumisable and editable knob with rotary, horizontal and/or vertical gesture recognition.


@IBDesignable Horizontal or vertical UIControl subclass that can start from bottom or middle of the control.

Other Apps

There are other great music theory apps available.


A music theory app that shows you lots of scales and chords with lots of features.


A music theory app for guitar, bass or any kind of instrument player with frets.


A powerful chord progression app with built-in MIDI sequencer.


MIDI Sequencer and Arpeggiator for iOS.

Chord Detector

Mac Status Bar App.


AUv3 MIDI Music Theory Keyboard for iOS.


AUv3 MIDI Sequencer for iOS.


AUv3 MIDI Rhythm Generator for iOS.

ArpBud 2

AUv3 MIDI Arpeggiator.

ChordBud 2

AUv3 MIDI Chord Sequencer.


AUv3 MIDI Recorder.


AUv3 Techno Bass Lines.


AUv3 MIDI Sequencer.


AUv3 MIDI Generative Sequencer.

ScaleBud 2

AUv3 MIDI Keyboard.


AUv3 MIDI Sequencer.


Multitrack Polyrhythmic Sequencer.

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