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Keys-Chords will help music students, musicians, vocalist and music aficionados understand the relationship between Keys and Chords in the Major music keys. It is an ideal app for musicians who play the Guitar, Piano, Base or any instrument that can play a chord. in addition, It is a useful aid for anyone who wants to understand the musical relationship between keys and chords. Keys-Chords will remove the mystery and help you understand how to Transpose chords from one key to another.

The user interface consists of two views. The Chord view and the Transpose view. The Chord view identifies/displays the seven Chords in each key as a major, minor or diminished chord. The Transpose view will help musicians and vocalists change chords to play or sing a song in any of the major keys.

What’s New

Version 1.9

This app has been updated by Apple to use the latest Apple signing certificate.

Upgraded for compatibility with iPhone 7.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

amrhein56 ,


Simple but it’s super helpful

Bill Sveglini ,


I just bought this app and was so excited about it i had to write this. As a music teacher of guitar, theory and voice, I am excited about this app. It makes the understanding of the harmonized scales easy. It shows the chords as they are in the different keys and it makes it easier to understand the keys that are harder for students to work with. This app will help players that play by ear also. It will let them know what chords to expect in a new song and they can find the chords in parallel keys.
The transposing ability of the app will help all musicians and vocalist that have to change keys to play or sing a song. Many thanks to the writer of this app. A useful app that does what the name says. BRAVO!!! Bill Sveglini

methode ,

Just what I was looking for

What a great tool! I have been struggling a bit to transpose some pieces for guitar - this easy to use App makes it simple!

App Privacy

The developer, Sal Caruso Design, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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