What Key

What Key

by Mark Carlotto

5 ratings
17 reviews

Archived App

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • January 15, 2009
  • January 7, 2017
What Key screenshot #1 for iPhone
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About

This application analyzes music in real-time to identify its musical key. It supports various scales including major, minor, blues, and bebop, finding the best match for the notes played. It is compatible with iPhone, iPad, and iPod Touch.

Real-time key detection
Supports major, minor, blues, bebop scales
Pitch detection algorithm
Universal app compatibility
Optimized for music with minimal percussion
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What's New in What Key

3.6

January 7, 2017

This app has been updated by Apple to display the Apple Watch app icon. Updated for newer devices.

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User reviews

Piece of crap

Doesn’t work. And if there’s something I’m doing wrong there’s nothing to help me. Do not waste your money like I did.

Great App after I learned how to configure

I have owned this for a long time, and rely on it to find keys to songs I want to learn to play.
The best way to get highly precise readings on this app is to be sure your settings are configured correctly. I recommend going the settings tab and turning off all scales except "major". If you do this, most songs will pop up correctly and stay the same during the entire song.

HOWEVER, if you have an ability to hear and recognize minor keys, and you are testing a song that you suspect may be in a minor key - turn off the "major" scale and turn on the "melodic minor" scale and give it a try. Also if you know how to recognize a blues tune, you may get good results from setting the scales to "major and minor pentatonic."
If you just turn on all scales, the display is going to show multiple options at any given point during a song. It may also be worth noting that some scales are essentially the same but with a different starting place (ie G major Em) so if you have a bit of music theory to help you you will enjoy the app more.
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Don't work

I tried using it with my iTunes it just shuts it off waste of money!

The app didn't make a sound

Not a goddam sound

Word to the wise don't buy this app!

Complete was of time! If you value your don't move on to another solution this app doesn't work!

Developer apps

FAQ

What is the price of What Key?

What Key is a paid application, priced at $1.99. This one-time purchase grants you access to all its features.

What devices does What Key support?

What Key is a universal app and runs on iPhone, iPad, and iPod Touch devices. It is designed to function across Apple's mobile ecosystem.

How accurate is What Key's key detection?

What Key uses a pitch detection algorithm to match notes to scales and keys. It works best on music with minimal percussion and tuned to A4=440 Hz for optimal results.

What musical scales can What Key detect?

What Key can detect major, minor, blues, and bebop (jazz) scales, among others. It identifies the scale and key with the best match to the music being played.

When was What Key last updated?

The latest version of What Key was released on January 7, 2017. The app has been available since its initial release on January 15, 2009.

What is the age rating for What Key?

What Key has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

What do users think of What Key?

User feedback for What Key is mixed, with an average rating of 1.8 stars from 5 ratings. This suggests potential areas for improvement in user experience or functionality.