---
title: "iImprov-Chord/Scale Compendium — App Overview"
url: https://marlvel.ai/apps/iimprov-chord-scale-compendium
category: Music
developer: Jazz Apps Mobile LLC
platforms: ios
rating: 3.7 (23 ratings)
pricing: paid
report_level: overview
generated: 2026-05-05
last_verified: "2026-05-05T05:58:21.058Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While users value the app as an accurate educational reference, reports indicate it may require technical updates for modern iOS compatibility and adjustments to playback speed for effective ear training.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Music |
| Rating | 3.7 ★ (23) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 1.3 |
| Developer | Jazz Apps Mobile LLC |

<!-- SECTION: Summary -->
## What is iImprov-Chord/Scale Compendium?

iImprov - Chord/Scale Compendium is a reference tool designed to help jazz musicians visualize and hear the relationships between 25 chord qualities and their corresponding scales. It provides standard notation, a key selection wheel, and audio playback to assist with improvisation practice and ear training.

<!-- SECTION: Key Features -->
## Key Features

- **Chord/Scale Reference**: Provides visual representations of 25 chord qualities categorized into Major, Minor, and Dominant families.
- **Interactive Key Selection**: Features a key selection wheel that displays recommended scales for each chord quality.
- **Audio Playback**: Plays chords and scales using practical voicings to assist with ear training and sound recognition.
- **Fast Forward Navigation**: Allows users to cycle through one to five recommended scales for any selected chord.

<!-- SECTION: Target Audience -->
## Who is it for?

Jazz musicians and students looking to improve their understanding of chord-scale theory and improvisation.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/iimprov-chord-scale-compendium/id453639147?uo=4)
- [Full Intelligence Report](https://marlvel.ai/apps/iimprov-chord-scale-compendium)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/iimprov-chord-scale-compendium).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*