# Piano Tuning App PT-A1 - US

> Utilities

Canonical page: [https://chrome-stats.com/d/id935490460](https://chrome-stats.com/d/id935490460)

## Overview

- **ID:** `id935490460`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Yamaha Corporation of America
- **Category:** Utilities
- **Rating:** 4.00 / 5 (4 ratings)
- **Version:** 1.3.1
- **Last updated:** 2025-11-20
- **First published:** 2015-03-01
- **Size:** 8.43 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/piano-tuning-app-pt-a1-us/id935490460)
- **Privacy policy:** [https://www.yamaha.com/en/apps\_docs/apps\_common/common\_PP\_min-1.html](https://www.yamaha.com/en/apps_docs/apps_common/common_PP_min-1.html)

## Description

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)
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

## Rankings

- #519,556 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id935490460)