# HarmoniKeys: Piano Chords — Voice leading & voicings

> Voice leading & voicings (iPhone/iPad app by Yoann SACHOT.)

- Source: https://appshunter.io/ios/app/harmonikeys-piano-chords/id6761690058 (this page in markdown: same URL + `.md`)
- Developer: [Yoann SACHOT](https://appshunter.io/developer/1889251007)
- Category: Music, Education
- Price: $3.99
- Age rating: 4+
- Requires: iOS 13.0 · 28 MB
- Languages: American English, French (France), Chinese (Simplified, China), European Spanish
- Released: 2026-04-13
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/harmonikeys-piano-chords/id6761690058/reviews.md

## What is HarmoniKeys?

HarmoniKeys helps you find the best piano chord progressions using optimal voice leading.

HOW IT WORKS
Select your chords and HarmoniKeys automatically calculates the positions that minimize finger movement between each chord. No more unnecessary jumps on the keyboard!

FEATURES
- All chord types: triads, sevenths, sixths, add9, add11 and more
- Smart voice leading algorithm: common tones kept on the same finger, minimum movement
- 2 interactive keyboards: left hand and right hand with displayed fingerings
- Real-time MIDI audio with General MIDI piano
- Built-in metronome with live adjustable tempo
- Preset progressions: Canon, Blues, Jazz, Pop and many more
- Unlimited chord grid saving
- Share grids via QR code
- Drag and drop to reorder chords
- Configurable notation: Anglo-Saxon or solfege
- 3 languages: French, English, Spanish

WHO IS IT FOR
- Beginner pianists learning proper chord transitions
- Advanced pianists seeking optimal positions
- Composers experimenting with chord progressions
- Music teachers teaching harmony

100% OFFLINE
No internet connection required. No data collection. Your music stays private.


## Version history (last 5 of 5)

### 1.0.39 — 2026-08-06

Store listing updated. Same app, clearer description.

### 1.0.38 — 2026-08-05

Améliorations de stabilité et corrections diverses.

### 1.0.37 — 2026-07-19

Améliorations de stabilité et corrections diverses.

### 1.0.36 — 2026-07-16

Améliorations de stabilité et corrections diverses.

### 1.0.34 — 2026-06-16

Améliorations de stabilité et corrections diverses.

## More apps by Yoann SACHOT

- [Esprit Français Naturalisation](https://appshunter.io/ios/app/esprit-francais-naturalisation/id6761381363)
- [DailyPull: General Knowledge](https://appshunter.io/ios/app/dailypull-general-knowledge/id6761654817)
- [Lyroes](https://appshunter.io/ios/app/lyroes/id6761676849)
- [Trace - Friendversaries](https://appshunter.io/ios/app/trace-friendversaries/id6770808713)
- [PistEmploi - Candidatures](https://appshunter.io/ios/app/pistemploi-candidatures/id6772056090)

All apps by Yoann SACHOT: https://appshunter.io/developer/1889251007

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*