# KeySignaturesZ - 調号マスター

> Game-based app for mastering music theory key signatures. (iPhone/iPad app by Shinji Tomita.)

- Source: https://appshunter.io/ios/app/keysignaturesz/id1133175115 (this page in markdown: same URL + `.md`)
- Developer: [Shinji Tomita](https://appshunter.io/developer/1133175111)
- Category: Music, Education
- Price: Free
- Rating: 4.50/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.3 · 11 MB
- Languages: English
- Released: 2016-07-17
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/keysignaturesz/id1133175115/reviews.md

## What is KeySignaturesZ?

目指せ！「調号」完全マスター！
音大などを目指す人のための、音楽理論(楽典)のうち調号をゲーム形式で身につけるためのアプリです。
・出題する言語は、ドイツ語・英語・日本語の中から指定できます。
・学習の進み具合に合わせて、制限時間と出題範囲を指定して下さい。間違えた問題だけを復習したり、「学習記録」をもとに、正答率の低い10問を出題することもできます。
・音階や文章題の学習にも役立ちます。
・速く正確に答えるほど高得点得点！高得点に挑戦してみて下さい。
Let's learn Key Signatures completely!
Play KeySignaturesZ like a game, and you will master key signatures, that is required as basic music theory for people studying music.
You can select language among English, Germany and Japanese as well as range of questions.
Answer questions as soon as you can, and you will get higher score. Let's try KeySignaturesZ!

## Key features

- Game-based learning
- Customizable language (English, German, Japanese)
- Adjustable time limits and question ranges
- Review incorrect answers
- Focus on low-accuracy questions
- Score-based challenges

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/keysignaturesz/id1133175115/reviews.md

### 4/5 — Updated: Good app  for learning

*2021-01-08, version 1.0.1*

I love the simplicity of the format and the concept itself.  

It took a little time to learn all of the app features. 

To the developers: 
Thanks for the free content.

## Frequently asked questions about KeySignaturesZ

### What is KeySignaturesZ?

KeySignaturesZ is a music theory app designed to help users master key signatures through a game-like experience. It's suitable for students aiming for music college or university.

### What languages does KeySignaturesZ support?

KeySignaturesZ allows users to select the language for questions from English, German, and Japanese. This flexibility caters to a wider range of learners.

### Can I customize the learning experience in KeySignaturesZ?

Yes, you can customize the learning experience by setting time limits and specifying the range of questions. This allows for tailored practice sessions.

### Does KeySignaturesZ offer review features?

KeySignaturesZ offers review features, including the ability to revisit questions you answered incorrectly. It can also present the 10 questions you have the lowest accuracy on based on your learning records.

### How does KeySignaturesZ help with scoring?

KeySignaturesZ rewards faster and more accurate answers with higher scores. Users are encouraged to challenge themselves to achieve top scores.

### What is the age rating for KeySignaturesZ?

KeySignaturesZ has an age rating of 4+. This indicates it is suitable for a broad audience, though its content is geared towards music theory learners.

### On which devices can I use KeySignaturesZ?

KeySignaturesZ is available on iPhone, iPad, and iPod. It is designed for Apple's mobile operating systems.

### How often is KeySignaturesZ updated?

KeySignaturesZ was last updated on July 17, 2016, with version 1.0.1. The app was initially released on the same date in 2016.

## Version history (last 1 release)

### 1.0.1 — 2016-07-17

このAppはApple Watch Appのアイコンを表示するようAppleにより更新されました。

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## More apps by Shinji Tomita

- [Perfect Scale Z Lite](https://appshunter.io/ios/app/perfect-scale-z-lite/id1280444677)

All apps by Shinji Tomita: https://appshunter.io/developer/1133175111

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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 2026-06-10.*