ArpBud MIDI Sequencer + More
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ArpBud has two main sequencers: the interval sequencer and the pitch sequencer, with unlimited number of steps for both. You can design your arpeggios by interval values in interval sequencer. And you can drive your arpeggios with a pitch sequencer by applying the pitch to each interval value of the interval sequence. Every step of pitch sequencer has its own interval sequencer. So, you are free to work on a single arpeggio as well as multiple arpeggios.

You can set the pitch bend, modulation and portamento MIDI control change values for interval sequencer steps. Also, you can set the rate, volume and loop count for each pitch sequencer step. You can copy/paste steps in between. And you can load other sequencers you have in your other projects.

You can set the layout of your projects and set the behavior of the knobs, or touch control gestures from the settings menu. It works for every screen sizes of iPhones and iPads. If you have an iPad user, you can take advantage of the split view feature and place both ArpBud and your audio MIDI app in one screen for working on them at the same time.

You can drive your favorite audio MIDI apps on your iOS or Mac/PC, like Garageband, Ableton Live, FMPlayer, Model 15 etc. ArpBud also supports Audiobus MIDI, IAA and Ableton Link for fitting into your current workflow. When you are not sequencing, if you have enabled any MIDI input (Audiobus MIDI app, connected hardware or other MIDI sending apps) for ArpBud, it will sequence the currently active interval sequencer for the playing MIDI input data.

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StepPolyArp Unit AUv3
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StepPolyArp Unit is a real-time polyphonic and polyrhythmic MIDI step arpeggiator and step sequencer. It can be used as a standalone application or an Audio Unit MIDI effect plug-in.

The application and the plug-in can operate as a step arpeggiator by automatically generating melodic patterns from played notes or chords, or as a step sequencer that doesn’t require MIDI input to play.

Unlimited presets can be saved on a local device and synchronized to iCloud. Each preset contains 16 patterns, 5 customizable polyrhythmic step controllers, and a 32 steps event matrix with 11 polyphonic and polyrhythmic lines driving the arpeggiator engine.

The application supports full internal and external MIDI connections for input and output, Audiobus MIDI sender, MIDI filter routing, Ableton Link sync, and MIDI clock source sync. An internal sound bank is included.

The Audio Unit MIDI effect plug-in supports multiple instances. A compatible host is required to run the plug-in. The host needs to support the Audio Unit MIDI effect format.


• Standalone application and Audio Unit MIDI effect plug-in
• Arpeggiator and step sequencer mode
• 1 to 32 steps programmable matrix
• 11 configurable transposition lines
• Polyrhythmic lines
• 16 patterns by preset
• Automatic chaining patterns
• 8 octaves resizable keyboard
• Multitasking
• Sample-accurate timing
• Internal sound bank
• Tap tempo
• Receiving MIDI from external MIDI sources
• Receiving external MIDI sync (MIDI clock)
• Ableton Link support
• Internal routing of inputs, outputs, and MIDI sync
• Send MIDI to a virtual port that can be used as MIDI input by other “Core MIDI” compatible applications
• Default velocity, modulation, pan, volume, aftertouch, and pitch bend steps controller
• Customizable steps controller MIDI setup
• Arpeggiator and sequencer conform to the selected scale
• 6 arpeggiator modes
• 1 random mode
• 1 chord mode
• Random patterns creation
• Presets manager
• “Program Change” support
• Native iCloud support
• “Files” application support
• Full support of “Split View” and “Slide Over”
• 128 Undo / Redo levels
• Copy and paste
• Lockable keyboard (latch mode)

Compatible hosts supporting Audio Unit MIDI effect:

• Cubasis

Supported MIDI connections:

• Virtual “Core MIDI” connections between applications
• iOS compatible MIDI interface
• MIDI over Wifi
• MIDI over Bluetooth
• Ableton Link (sync and transport)
• Audiobus (MIDI, transport, state saving)


An iPad or iPhone with iOS 11 or later

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Chordflow Version 2
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ChordFlow is a chord sequencer with a polyphonic matrix arpeggiator.

What’s New in Version 2.0.0


– Each section row now contains a play button with the section name, an arpeggiator pattern view and a chord sequence view. You can start playing a section or jump to another section just by tapping on a section’s play button. You can now see arpeggiator patterns and chord sequences of all your sections right on the main view. So it is now much easier to see what is currently playing and what you need to play next.

– Custom names for sections. You can now give your sections custom names. Tap on the edit button at the right of the navigation bar. Press rename on the required section.

– Section reordering was improved. Now to reorder a section just long-press on it and move it around.

– Each chord is now represented as a tile instead of a row. So it is now a lot more compact and allows you to fit more chords into one screen. The currently edited chord is indicated by a color frame around it. You can now edit the selected chord while the whole chord sequence is playing. It is much more convenient because you can hear the changes you make in the context of the full sequence.

– Duration slider was removed. Now, to change a chord duration you use the new picker control’s column with label “Beats”.

– Now when you add a new chord, instead of adding a default C major chord to the end of the sequence, the currently selected chord is copied and inserted after the selected chord. Selection is then moved to the newly added chord allowing you to edit it right away if you need to.

– If the sequence is currently playing and you select a chord that was not selected before, the playhead will not jump to that chord. This allows you to edit the chords of the sequence without disrupting the music flow. But if you still want to jump between chords, tap on a chord one more time, and it will start playing after the currently played chord is played to the end. If you want to jump to the selected chord right away, tap on it two times more after the selection tap. To summarize: 1 tap = selection, 2 taps = selection and quantized jump, 3 taps = selection and immediate jump.

– Chord reordering was also improved. To change a chord position, long-press on it and move it wherever you want it to be.

– Per-track mute buttons were added.

– Move tool added. You can now move the selected track along the arpeggiator grid.

– Per-track octave param added. You can now change the octave of the selected track.

– Per-track voice number param added. You can now set the number of voices per a track. When you set this param to the value more than one, the track will be splitted to the multiple parallel lines. You can use it to quickly create full chord parts with just one track(color). Before that improvement, you would need to use multiple tracks for that task.

– Portrait orientation support for iPhone. You can now edit arpeggiator sequence in both portrait and landscape orientations. When you are in the portrait orientation on an iPhone, you see only a part of the arpeggiator sequence. To scroll through it you use a two finger pan gesture (put two fingers on the arpeggiator grid and slide them left and right). On the landscape orientation on an iPhone, the grid is fit to the screen so you can see the whole sequence.

– Undo/redo buttons added. You can now go back and forth in the history of edits in the arpeggiator editor.

– “Clear all” button added. You can now clear the whole arpeggiator pattern at once.

– Several unexpected crash cases were fixed.

– Editing performance is improved. The chord sequence and arpeggiator sequence editing procedures were optimized to provide much smoother experience when editing a section while the app is playing.

– Currently opened song is now autosaved.

– Overall UI polishments and minor bug fixes.

Get ChordFlow

Chordflow Chord Sequencer and Arpeggiator
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ChordFlow is a chord sequencer with a unique 4-track polyphonic arpeggiator, extensive chord library, MIDI out and Ableton Link support.

Use it as a songwriting tool:

Discover inspiring chord progressions and arpeggiator patterns for your new songs. Try re-harmonizing your existing songs using advanced chords from the library containing 50+ chord types.

Use it as a backing track tool:
Create a chord progression, select a looping mode and practice your solo on your favorite instrument or sing along with ChordFlow.

Use it for live performance:
Prepare multiple sections with different chord progressions and different arpeggiator patterns. Loop a section or a specific chord, jump between sections or chords on the go. Edit arpeggiator patterns while playing to add variation to your performance. Play in sync with other apps using Ableton Link.


– More than 50 chord types available.
– Intuitive tools for drawing arpeggiator sequences.
– 1 to 32 steps arpeggiator
– 4 tracks in a arpeggiator sequence.
– 3 sequencer looping modes: one pass, loop selected, loop all.
– Quantised jumps between sections.
– A song can be split by any number of sections each containing different chords and arpeggiator sequences.
– Songs can be saved on disk.
– MIDI Out to any CoreMIDI compatible app, USB or WI-FI
– Ableton Link support


VirSyn Arpeggist for iPad
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Arpeggist is a MIDI Note arpeggiator with a very flexible step matrix editor for programming and a unique “rolling dice” random arpeggio generator. You can build arpeggios from scratch or use one of the factory arpeggios as foundation. You can also create an unlimited number of user arpeggio presets.

Just play a chord or a single note and it gets transformed into a grooving monophonic synth line or a rhythmical chord pattern.

Full featured programmable Arpeggiator
• User programmable sequences with up to 32 steps.
• Can trigger single notes and chords.
• Unique randomizer generates Arpeggios with 100% usability.
• 40 Factory arpeggios included, unlimited user arpeggios possible.
• For each step you can program tie (bound notes), accent, transposition and note order
• Use to control MIDI compatible Synthesiser

• Play trigger notes live with the onscreen keyboard.
• Optionally use CoreMIDI compatible hardware keyboard.
• Chord generator plays complex chords on one finger playing.
• Internal sound generator.
• Selectable Arpeggiator MIDI Output port.
• Dozens of scales selectable
• Variable Keyboard layout for scale optimized playing

• Audiobus 2 compatible (Input slot) with Preset saving.
• Inter App Audio
• Exchange user presets with File Sharing in iTunes.
• Support for virtual MIDI input/output connections.


  • iPad Loops is a music app blog dedicated to exposing the best iPad apps for iOS musicians, producers, and Djs. This is not a database of every app. It is, however, one of useful recommendations from someone with many years in music production. I try to update it on a daily basis (ok sometimes every two days) and I do my best to post useful apps only. My name is Jason Donnelly (Dj Puzzle). You might know me from my royalty free loop packs and sound design. Some of the apps that contain my loops are Retronyms AudioCopy, LP-5, iPRO.DJSAMPLER, Looptastic, and Audio Elements. My work is published by Magix Soundtrack Loops, Sample Logic, Pakotec, Loopmasters, Acoustica, Xmix, Sound Trends, and many more. Subscribe to our RSS feed below to get updated when new apps are posted.


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