Key? - App Store
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Publisher Description
To celebrate the first release we are discounting this app for the next 100 downloads! Enjoy!
Have you ever been listening to a song and wondered what key it was in?
Have you wondered about songs that change key part way through the song, for a chorus or bridge?
Now, you don't have to wonder!
We have implemented a neural learning program and made it listen to thousands of songs - just so it can instantly tell you the key of the song you are listening to.
It uses the built-in microphone, has auto-noise-cancelling, does not need any remote connection, has built-in calibration and is completely plug and play!
Just start the app and let it listen - within a couple of seconds it will be able to tell the current key, and track any changes in real time.
You can even see how the note energy changes over time in the dynamic real-time harmonic analyzer - each column represents a different octave! It's hypnotic!
You will be amazed how many songs are identified as using a major key - but end-up playing in its relative minor! Or, how many Blues/Rock songs use the A Minor Blues scale for solos - regardless of the actual song key...
About Key?
The company that develops Key? is Bill O'Neill Design LLC. The latest version released by its developer is 1.0 .
To install Key? on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2025-04-25 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Key? as malware if the download link is broken.
How to install Key? on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Key? is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Key? is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version -
posted on 2025-04-25
Disclaimer
Official App Store Link
We do not host Key? on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
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