ChordFlow updated – iOS MIDI chord sequencer app gets improved Audiobus 3 support

Download from iTunes App StoreI did a round-up article a good while ago here on the Music App Blog that looked at the various ‘MIDI performance’ apps available for iOS. A couple of apps that have appeared since that article are ChordUp and Clawtar, both from developer Dmitry Klochkov. Both bring a slightly different take on the whole MIDI note creation process and I’m sure many iOS musicians could find a use for either app amongst their utility apps. Both are also available for pocket money prices.

Dmitry’s new app  – which as I mentioned recently was launched at the end of April – is ChordFlow and is in the same sort of territory. ChordFlow is described as a chord sequencer with a built-in arpeggiator function. It allows you to construct multiple chord sequences (the app features a library of over 50 chord types) and the chord sequences themselves can then be placed into ‘sections’ that can then also be sequenced to give you a song-like structure.

Chordflow’s main screen… and showing the new option for duplicating a song section.

With the chord sequences defined, you can then construct a four-part note pattern within each section and that dynamically modifies itself to fit the current chord – this is sort of an arpeggiator but with a bit of a twist – and the MIDI notes generated can be played back via the internal (GM-style) sounds or sent out to another iOS music app or sequencer for recording. The note patterns can have up to 32 steps so you can build quite complex parts.

I’ve yet to do a detailed review of the app but it is universal, offers Ableton Link support, requires iOS8.0 or later and is a 20MB download. It is also modestly priced at just UK£6.99/US$6.99. All the key functions seem to work well and are easy to follow and I could easily imagine this being used in an experimental way as a song-writing/compositional tool….   create a chord sequence, draw in some note patterns, feed the notes out you your favourite synth app and see what inspires….

Anyway, when ChordFlow moved to v.1.1.1 in May, per-track MIDI routing was added so that each of the four tracks/lanes could be assigned to different MIDI out destinations. You can, therefore, use ChordfFow to drive more than one other synth for even more interesting sound options.

ChordFlow’s Audiobus 3 support new includes working with the AB3 MIDI routing system.

A further update has been released today and the highlight new feature is improved Audiobus 3 support. ChordFlow now provides four Audiobus 3 MIDI sender ports as well so you can use all of the MIDI routing features now available in Audiobus 3 to patch the ChordFlow MIDI data wherever you might wish. In addition, ChordFlow can now be controlled via the Audiobus start/stop buttons and it, if you are using the internal ChordFlow sounds, the app can work as an Audiobus input.

Having given the new AB3 options a bit of a run through this morning, all seems to be working well. I had no problems routing ChordFlow’s four tracks out on different MIDI routes within Audiobus and sending them off to different destinations, or starting/stopping the ChordFlow sequencer from within AB3.

ChordFlow is an interesting app and great for coming up with new sequence-based musical ideas. If my ‘to do’ list ever manages to get any shorter, I’ll do my best to get around to a full review of ChordFlow. Until then, check out the demo videos below and then hit the App Store download button to find out more.


Download from iTunes App Store

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