Harmony Improviser is an advanced harmonic composition tool. It implements the rules of classical harmony theory in a simple, yet powerful form, to support your creative efforts.

The main interface consists of a set of pads. Each of them is playable and represents a different chord. All presented chords belong to a particular key, which can be selected in Settings section, by circle of fifths based controller. Selecting new key causes chords to update accordingly to newly selected key.

Harmony Improviser also allows you to select which chord types you want to use. There are several types available, including: major, minor, sus2, sus4, add9, 6th, 7th, 9th, dominant, diminished. You can enable or disable any of them at any time.

4 high quality sounds are available: string, acoustic guitar, acoustic piano and synth.

Harmony Improviser is a perfect tool for:
+writing songs
+exploring chord progressions
+playing songs from sheet music / lyrics with chords sheets
+transposing songs to a different key
+discovering new musical ideas / inspirations
+creating drafts of your musical ideas / arrangements
+learning theory of music
+ear training

Full version of Harmony Improviser features:
+25 playable pads, each pad representing different chord
+unique circle of fifths based navigation component, for switching between different keys
+several chord types, including: major, minor, sus2, sus4, add9, 6th, 7th, 9th, dominant, diminished
+15+ chord progressions from various music genres like pop, rock and jazz
+progression navigator
+4 high quality sound effects (string, piano, guitar, synth)
+component for customizing which chord types should be used

What’s New

Version 1.2

-minor graphical improvements

Ratings and Reviews

4.4 out of 5
22 Ratings

22 Ratings

Lemonpol ,

Great stuff

This is a really nice tool to play around to seek inspirations- I would love to see that in the next update you can see the chords explained - so how to play them on a guitar or keyboard. Also it would be great to record and export as midi. That would make it a 5 star composing tool that I would be willing to pay good money for

TTgrrl ,

✨😍✨Brilliant app for music theory & creating music!!! 🌟🌟🌟🌟🌟

Having never gained a formal music education in my early years, I became a very very very basic self-taught acoustic guitar player as an adult. I'm still in the process of learning music theory, and I use this app to expand my knowledge of theory, keys, harmonics,
chord progressions, etc. I also use this app for creative inspiration when songwriting, for figuring out songs I hear on the radio, and for just geeking out having fun with music. THANK YOU FOR MAKING SUCH A BRILLIANT APP!!!!

H.V.Information ,

Interesting and valuable

We didn't learn to talk or sing by having to first read and write. Speaking and singing are natural. This app complements natural development. Used with the circle of 4th/5ths you should get more understanding of composition structure and can start to label these harmony ideas so you can return or refer to them.


Marcin Sewastianowicz
175.8 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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