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First-time developer Dmitry Klochkov has released a Universal iOS MIDI instrument for playing chords.

ChordUp iTunes Description:

Chord playing musical instrument and MIDI controller.

Play instantly any of 108 available chords with no pre-configuration. Play easily any chord pattern: bass and chord, strumming, arpeggios, power chords, etc. Play your favorite synth or sampler with MIDI mode.


  • 108 available chords (9 chord types for each of the 12 keys).
  • 4 octaves range for a selected chord without using octave shift buttons.
  • 8 octaves range with octave shift buttons.
  • 9 embedded instruments.
  • Smart sustain. With the sustain enabled, when you switch chords, only the notes of the current chord that don't belong to the next chord are muted.
  • Adjustable buttons on iPad.
  • Virtual MIDI and Wi-Fi MIDI support.

Buy ChordUp Lite on iTunes: Free


Buy ChordUp on iTunes: $2.99

Here's an epic demo of the app playing a brass ensemble in SampleTank. Other examples are available on YouTube.

Reader Comments 2

Looks and sounds interesting. Pity the video is made with an upside down view of what is going on. Can anyone enlighten us further on possible applications and advantages of this app? I seem to have just too many "chord" playing apps these days and doubt I need this one to add to the collection, but I could be wrong ......

December 07, 2015  | person_outline Mr Chip

Hi. Answering the question from Mr. Chip's comment. The interface of the app is upside down on the video because when playing I hold the device infront of me upside down(as someone noticed like a squeeze box). I hold it this way because when I look at the display when I play I see it not upside down. I hope this make sence..) Maybe on this video http://www.youtube.com/watch?v=4vWPPw4zWsY it is more clear what I am talking about.

December 08, 2015  | person_outline ChordUp

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