# Piano Tuning Application PT-A1

> Professional piano tuning software with automatic note detection and customizable settings. (iPhone/iPad app by Yamaha Corporation.)

- Source: https://appshunter.io/ios/app/piano-tuning-application-pt-a1/id882399253 (this page in markdown: same URL + `.md`)
- Developer: [Yamaha Corporation](https://appshunter.io/developer/353469356)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 8 MB
- Languages: English
- Released: 2026-01-18
- Data updated: 2026-09-09
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/piano-tuning-application-pt-a1/id882399253/reviews.md

## What is Piano Tuning Application PT?

YAMAHA PT-A1 is a piano tuning software for professional piano technicians who have mastered the basic skills of piano tuning. 
Simplicity and accuracy were the major considerations when designing the PT-A1, and its development was based on many years of experience of Piano design, manufacturing and education of Piano technicians in YAMAHA.
Equipped with the same basic functions and screen interface as the existing YAMAHA tuning machine/software, the new PT-A1 will provide you with easy and comfortable operation. In addition, the tuning and measurement efficiency is significantly improved by the newly designed automatic note detection function. 

SINCE THIS APPLICATION IS ONLY FOR PROFESSIONAL USE AND IS PRICED ACCORDINGLY, PLEASE READ END USER LICENSE AGREEMENT (EULA) CAREFULLY BEFORE YOU PURCHASE THIS LICENSE.

[Specifications]
Resolution: Less than +/- 0.2 cents
Pitch Setting: 415, 435, 436, 438, 440, 441, 442, 443, 444, 445 (Hz)
Temperament Setting: 		Equal temperament, Meantone, Werckmeister III
Note Setting: KEY No., OCT/NOTE and Automatic note detection
Tuning Curve Setting: FLAT, UP, GP（〜227cm）, CF（275cm）, CUSTOM1-4
Range: A1-100 cents to C8 + 200 cents
Modes: Tuning Mode/Measurement Mode/Settings Mode
Computer related functions: Custom Tuning Curve Settings, Graph drawing *Compatible with Windows version Excel only.
Compatibility: Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch. 
Language: English, Japanese

## Key features

- Automatic note detection
- Customizable tuning curves
- Multiple temperament settings
- Tuning and measurement modes
- Graph drawing for Excel
- High accuracy (< +/- 0.2 cents)

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/piano-tuning-application-pt-a1/id882399253/reviews.md

### 3/5 — 現状QRコードでのデータ交換が機能してない

*2021-04-22*

色々と改善はなされているのですが、QRコードでのデータ交換が必ずと言って良いほどエラーと言われて出来ません。

スマートフォンの機種が違うことで起きるのか何なのかはわかりませんが、iTunesが使えない屋外でのデータのやり取り（研修など）で困ったので、ぜひ改善をお願いします。

**Developer response:** 今回のV1.2.0バージョンアップの際の不具合にて皆様にご迷惑をおかけしましたことお詫び申し上げます。
V1.2.1にてバグの修正の改善が済んでおりますので、今後ともご愛用宜しくお願い申し上げます。

### 1/5 — 反応しません

*2021-03-13*

起動すると、モニターが不規則な点滅を繰り返して反応しません

### 1/5 — インジケーターが消える

*2019-10-30*

最初の起動時、起動したまま電源ボタン押してスリープ状態にし、復帰は問題なく動作しますが一度アプリを切り替え再度表示させるとインジケーターが消えてしまします。

### 1/5 — 残念です。

*2018-01-25*

バージョンアップお知らせあり、アップデートしたら、マイク、音は検知（音は拾う）するが、正しく検知しないので、チューナーとしての役割がないです。早く原因究明し、修正ねがいます。

**Developer response:** 今回のV1.2.0バージョンアップの際の不具合にて皆様にご迷惑をおかけしましたことお詫び申し上げます。
V1.2.1にてバグの修正の改善が済んでおりますので、今後ともご愛用宜しくお願い申し上げます。

### 1/5 — 最悪

*2018-01-18*

バージョンアップしたら、調律で一番必要なピッチが全く合わなくなりました。かなり狂いすぎです。素人でもわかるレベルで、音がおかしくなります。高額なヤマハ製品なのに非常に残念。

**Developer response:** 今回のV1.2.0バージョンアップの際の不具合にて皆様にご迷惑をおかけしましたことお詫び申し上げます。
V1.2.1にてバグの修正の改善が済んでおりますので、今後ともご愛用宜しくお願い申し上げます。

### 1/5 — バージョンアップ

*2018-01-18*

今回バージョンアップの知らせが来ていたので当たり前のようにアップしたらまるでつかえなくなった‼️どう言う事やねん‼️

**Developer response:** 今回のV1.2.0バージョンアップの際の不具合にて皆様にご迷惑をおかけしましたことお詫び申し上げます。
V1.2.1にてバグの修正の改善が済んでおりますので、今後ともご愛用宜しくお願い申し上げます。

## Frequently asked questions about Piano Tuning Application PT

### What is the accuracy of Piano Tuning Application PT-A1?

The application boasts a resolution of less than +/- 0.2 cents, ensuring highly accurate tuning for pianos. This precision is crucial for professional piano technicians.

### What tuning and temperament settings does Piano Tuning Application PT-A1 offer?

It supports various pitch settings from 415 Hz to 445 Hz, and offers Equal temperament, Meantone, and Werckmeister III temperament settings. Users can also customize tuning curves.

### Does Piano Tuning Application PT-A1 have ads?

The provided data does not indicate the presence of advertisements in the Piano Tuning Application PT-A1. It is designed as a professional tool with a focus on functionality.

### On which devices can Piano Tuning Application PT-A1 be used?

Piano Tuning Application PT-A1 requires iOS 6.1 or later and is compatible with iPhone, iPad, and iPod touch devices. It is designed for professional use on Apple mobile devices.

### How often is Piano Tuning Application PT-A1 updated?

The application was last updated on September 29, 2022, with version 1.3. Further update frequency information is not available in the provided data.

### What are the computer-related functions of Piano Tuning Application PT-A1?

It allows for custom tuning curve settings and graph drawing, with compatibility for Windows version Excel. This feature aids in detailed analysis and record-keeping for piano technicians.

### Is Piano Tuning Application PT-A1 suitable for beginners?

No, Piano Tuning Application PT-A1 is specifically designed for professional piano technicians who have mastered basic tuning skills. Its advanced features and pricing reflect its professional target audience.

## Version history (last 1 release)

### 1.3 — 2022-09-29

* Supports APPEARANCE "Dark" in settings.
* Display and screen size adjustment.
* Address minor display bugs.

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All apps by Yamaha Corporation: https://appshunter.io/developer/353469356

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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 2026-09-09.*