# By Ear PRO: Slow Down, Notate — Your ears, slower, then MIDI

> AI-powered music transcription and chord analysis tool for musicians. (iPhone/iPad app by Kenichi Ando.)

- Source: https://appshunter.io/ios/app/by-ear-pro-slow-down-notate/id6760327561 (this page in markdown: same URL + `.md`)
- Developer: [Kenichi Ando](https://appshunter.io/developer/1764800769)
- Category: Music, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 44 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-03-20
- Data updated: 2026-10-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/by-ear-pro-slow-down-notate/id6760327561/reviews.md

## What is By Ear PRO?

"How do they play that part?" — this app answers it.

Every musician hits the same wall sooner or later: working a song out by ear.
A song with no sheet music. A phrase you love. That intro.
By Ear PRO takes that wall down with four tools.

1. A head start on the chords
Import a track and you get a first reading of the chord progression.
Your ears still decide — you just don't have to start from nothing.

2. Slow playback that keeps the pitch
Play a fast phrase slowly without it dropping in pitch.
Combine it with AB repeat and you can loop the hard part as long as you like.

3. Work it out while you watch the piano roll
The chords sit on a piano roll in front of you.
See it, hear it, and correct it until it matches what you heard.

4. Start from a blank roll and write it yourself
Enter notes at your own pace from nothing at all.
Insert chords as you go and build the structure while you work.

ABOUT THE PRO PLAN

A one-time purchase with a permanent licence. Buy it once and there is nothing
more to pay. No subscription and no renewal.

PRO unlocks:
- Saving and opening projects (.csp)
- MIDI export (.mid)
- Everything added to PRO in the future

RESTORING AFTER A NEW DEVICE OR REINSTALL

If you bought it before, tap "Restore purchase" in the app to get it back at no
cost. As long as you are signed in with the same Apple ID, PRO works on the new
device with nothing more to pay.

PAYMENT

- Charges are billed to your Apple ID.
- PRO is enabled as soon as the purchase is confirmed.
- Payment is handled through Apple's In-App Purchase.

PRIVACY AND TERMS

Privacy policy:
https://tenmais.jp/privacy.php?lang=en
Terms of use (Apple standard EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

This app does not sell or pass your personal information to anyone.
See the privacy policy above for details.

SUPPORT

Questions and requests are welcome:
https://tenmais.jp/contact/?lang=en

Working a song out by ear is the best training there is for understanding music.
We hope this app makes your musical life richer.

## Key features

- AI chord analysis from audio
- Pitch-preserving slow playback
- Piano roll visualization of chords
- Freehand transcription with chord insertion
- Project saving and loading
- MIDI export

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/by-ear-pro-slow-down-notate/id6760327561/reviews.md

### 5/5 — こういうアプリ待ってました

*2026-03-21*

操作が簡単で使いやすかったです

## Frequently asked questions about By Ear PRO

### Does 耳コピーPRO have ads?

No, 耳コピーPRO is an ad-free application. You can enjoy all its features without any advertisements interrupting your workflow.

### How much does 耳コピーPRO cost?

耳コピーPRO is a one-time purchase for a permanent license, costing ¥900. Once purchased, there are no additional fees, and all future features are included.

### Can I use 耳コピーPRO on multiple devices?

Yes, you can restore your purchase for free on new devices by using the 'Restore Purchase' button within the app, provided you are signed in with the same Apple ID.

### What is the age rating for 耳コピーPRO?

耳コピーPRO has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger individuals interested in music.

### How often is 耳コピーPRO updated?

The latest version of 耳コピーPRO is 1.0.1, which was last updated on April 3, 2026. While specific update frequency isn't detailed, this indicates active development.

### What devices support 耳コピーPRO?

耳コピーPRO is available for iPhone and iPad, offering a versatile experience for Apple users on the go or at home.

### Can I export my transcriptions from 耳コピーPRO?

Yes, the PRO version of 耳コピーPRO allows you to export your transcriptions in MIDI format (.mid). This enables you to use your work in other music production software.

### What makes the PRO plan special in 耳コピーPRO?

The PRO plan for 耳コピーPRO, available as a ¥900 one-time purchase, unlocks features like project saving and loading (.csp format) and MIDI export (.mid format), along with all future updates.

## Version history (last 3 releases)

### 1.1.0 — 2026-09-14

Now available in 10 languages.

English, French, German, Italian, Spanish, Portuguese, Chinese (Simplified and
Traditional) and Korean have been added. The app follows your device's language
setting automatically.

ALSO IN THIS VERSION

- The app is now available worldwide.
- The PRO plan has been repriced. The purchase screen shows the price in your
  own currency, taken from the App Store.
- If you already own PRO, nothing changes for you. After a new device or a
  reinstall, use "Restore purchase" to get it back.

Every project you have made carries over unchanged.

### 1.0.1 — 2026-04-03

最低動作OSバージョンをiOS 16.4以上にしました。

### 1.0 — 2026-03-20

No release notes.

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## More apps by Kenichi Ando

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- [Shy Video: Make Videos Small](https://appshunter.io/ios/app/shy-video-make-videos-small/id6664066092)
- [Easy Copy and Paste](https://appshunter.io/ios/app/easy-copy-and-paste/id6736381986)
- [簡単！mp3プレイヤー](https://appshunter.io/ios/app/mp3/id6758285819)
- [簡単！耳コピー](https://appshunter.io/ios/app/id6758933878)
- [Simple Slow Downer: By Ear](https://appshunter.io/ios/app/simple-slow-downer-by-ear/id6759311175)

All apps by Kenichi Ando: https://appshunter.io/developer/1764800769

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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 2026-10-01.*