Chordie APP

The only teaching tool you’ll ever use!

Chordie App is for you if...

Do you play tons of chords but don’t really know the names for all of them other than the generic “minor”, “major” or even simply referring to them as numbers?  Are you struggling with reading the notes of the grand staff? Are you struggling to direct the other musicians what chords they should be playing during rehearsals? Are you producing music tutorial videos and are tired of juggling Logic’s chord detector, VMPK’s piano roll, and whatever notation software you’re using to teach the viewer?

ChordieApp is designed for musicians, teachers, producers, or anyone who works in music. It’s designed to make the arduous task of learning or teaching chord names and how to read sheet music extremely easy. No longer will the secrets of extended harmony be relegated to the classroom in the college theory programs. Teach yourself!! Whatever you throw at ChordieApp, it’ll tell you exactly what it is, and make it extremely easy to explain it to everyone else!

See Chordie App in Action!


"Just bought your app, man I love it! I've tried different ones like Toontrack Ezkeys and other apps but this is the one! What I've been waiting for! Even got the tritones! Thanks for this amazing learning tool! Love it!"
Danny from Sweden
This is a phenomenal app. Thanks for creating it!

Hey there, just want to say that Chordie is a great app once again. I will be using it in a few videos very soon. I'll be sure to let my subscribers know about the product and I'll share the videos to this page ūüôā

VGSoundtrack Guy

System Requirements

Windows System Requirements:

v1.2.6: Windows 10* (64-bit)

Mac OS System Requirements:

v1.2.7: OS X v10.11 or later

Compatible with MacOS Monterey and Apple Silicon!

You will also need:

DAW or other external sound source to hear what you’re playing.
ChordieApp does not produce sound. Check the FAQ below for tips.

A consistent internet connection during use.


USB MIDI Controller.
(You can trigger notes with your QWERTY keyboard)

*Beta testers confirmed ChordieApp works with Windows 7 (64bit) and Windows 8(64-bit). However, compatibility with these operating systems has not been tested and are NOT SUPPORTED.

Gumroad accepts all major credit cards, Apple Pay, and Google Pay.

Frequently Asked Questions

How many computers can I install ChordieApp on?
Where can I read the license agreement?

One computer РOne License!  View the License Agreement

Where can I download the latest update?

I sell ChordieApp through  Gumroad handles payment processing and delivery of the app.

The easiest way to update is to click the big blue button in your Receipt.  However, that only works if you still have your receipt.  

Gumroad has a page to automatically resend your receipt!  

The 2nd easiest way to update is to click the product image in any of the emails I occasionally send out.  That’ll take you to the same page that clicking the blue button in your receipt will.  However, this only works if you haven’t unsubscribed.

The next way to update is via your Gumroad Library. However, this only works if you were signed in to your Gumroad account when you purchased ChordieApp.  Visit the Following link after signing in.. 

  • Click on ChordieApp in your library. 
  • Explore the buttons that appear after clicking on the product to see all of the files you can download along with your receipt, which has your license key on it.
  • if you don’t have a Gumroad account, scroll to the next FAQ entry and follow those instructions instead.

I don't see the app in my Gumroad Library!

If you already purchased the app, here are Gumroad’s instructions on how to add it to your Library.

The reason it’s not in your library is because you bought it when you were logged out. No worries, there’s a fix!

Go to and login to your account
If you don’t have an account, create one here:¬†

  1. Go to the download page of this product. You can find this download page link in the receipt we emailed you after your purchase. You can also try going to the URL of the product. If you don’t know the URL, simply go to and search for the name of the product and “gumroad”
  2. On the download page, there’ll be an “Add to library” button. You can click that to add it to your library, and then it’ll show up here:
Gumroad uses your email to determine that you’re the owner of the product, even if you were logged out while buying it.
If that button doesn’t show, it can mean one of two things:
  1. It was bought with another email. You can confirm this by looking up the email receipt, and seeing the address it was sent to.
  2. It was bought when you were logged in under another one of your accounts.
In either of these cases, just email with the invalid email (the email used to buy, or the email of the other account) and the email on your current library’s account and Gumroad can update it for you.
Once Gumroad updates the email address, ChordieApp show up in your Gumroad library::

I bought the wrong version!

If you bought the Windows version but meant to buy the Mac version (or vice versa), as long as you haven’t downloaded/opened/authorized/used the app, you can send me an email and I’ll help you out.¬† Just reply to your receipt to email me.

I recently switched from Windows to Mac/Mac to Windows.
Can I use my existing license on this new computer running a different operating system?

Licenses are not transferable or compatible between operating systems.¬† You’ll need a separate license for your other computer.

Why can't I open the app in OSX?

If GateKeeper is preventing ChordieApp from opening, you can open it by right-clicking on the app and selecting ‘Open’.¬† You can also go to System Preferences -> Security and allow it to run there.¬†

I can't authorize the app!

Copy your license key from your receipt exactly as it appears on the receipt.
Be sure to enter your email address exactly as you entered it during purchase, including any capitalization.
‘’ is NOT the same as ‘’!

I can't find my license key!

It’s on your receipt!¬† You can also find it in your Gumroad library.
See “Where can I download the latest update?”
Click on ChordieApp in your library to see your receipt which will have your license key on it.

I have a Payment Question, Payment issue or VAT question

Gumroad handles ALL payment processing, so please reach out to them via

You can also view their customer help portal here:

How do I hide the fretboard?

You can enable/disable the fretboard via the Fretboard Preferences, found under the Fretboard Menu.

Where do I change the app settings?

You can change a lot of the app settings via the menu bar in the app. 


What are the letters on the left of the Manuscript View?

These are the note names of the pitches being displayed on the grand staff.¬† It’s to help those users who don’t read notation very well.

What are the smaller chord symbols on the right, underneath the main symbol?

Chords can be described in multiple ways.  A lot of players think of chords differently.  For example, a C7(#5#9) chord could be thought of as an Ab Triad on top of a C7(no 5th) chord.   I tried to be as thorough as possible and describe each chord with whichever names it could be described with.

I'm not hearing any sound when I play on my midi controller

ChordieApp doesn’t generate any audio.¬†¬† You need to use your DAW or a keyboard with sounds built in if you wish to hear what you’re playing.¬† ChordieApp¬†merely reads the MIDI data.

Which Operator Systems does ChordieApp run on?
Does ChordieApp run on Windows 10 or OS X Catalina?

Yes! Please see the system requirements above for specifics:

I am using a USB-MIDI Adapter to connect my keyboard to my computer. I don't see anything when I play on my keyboard in Chordie

Here are a few things to check:

  • Make sure the MIDI IN port on your adapter is plugged into the MIDI OUT port of your midi controller.
  • Make sure your MIDI controller is transmitting on channel 1.¬† ChordieApp¬†only responds to channel 1 at the moment.
  • If your midi keyboard has a USB port to connect to the computer and supports sending MIDI over USB directly, use that instead of your USB-MIDI Adapter.¬† You might need to install drivers for your keyboard.¬† Check your keyboard manufacturer’s website and keyboard user manual.

How do I use Chordie with my DAW and MIDI Controller on Windows?

Windows doesn’t allow midi devices to be shared between applications.¬† You have to use LoopMIDI to act as a bridge between your DAW and ChordieApp.¬†

In general terms, you have to do this:

  • Install LoopMIDI and add a port
  • Open your DAW
  • Enable the LoopMIDI port you created as a MIDI Out destination in your DAW preferences.¬†
    Do not enable it as a MIDI In destination. Doing so will create a midi feedback loop and LoopMIDI will mute the port.
  • Create an External MIDI Instrument track and set the destination to LoopMIDI port
  • Open ChordieApp, and set ChordieApp’s¬†midi input to LoopMIDI port.

Each DAW on Windows has these settings and options hidden under different menus. 

Here is a search query on youtube you can use to see videos of how to do this for specific DAWs:

If you want to play midi files through ChordieApp, drag the midi file onto the External MIDI Track that is sending to LoopMIDI and press ‘play’.
Note: ChordieApp only responds to Midi Channel 1 at this time.

Will my keyboard work with ChordieApp?

  • Plug in your keyboard to your computer.  
  • Download and run the app. 
  • Play some notes.  
  • If you see MIDI messages show up, ChordieApp will be able to read MIDI information from your keyboard.

If you need help running MidiView, check the MidiView website.  I cannot provide support for that app as it is not my app.

Why does ChordieApp need an internet connection?

The chord definitions are stored online so I can update them at will without needing to release an app update every time someone requests I add or modify a chord definition.  The latest definitions are retrieved every time you run the app.

I think I found a mislabeled voicing or a bug. What do I do?

Take a screenshot.  Email it along with a description of what you expected to see to

I keep seeing flat symbols when I expect to see sharps!

Right now the app is using a spelling table to decide how to name notes.  For the key of C, that spelling table is C Db D Eb E F F# G Ab A Bb B.  That is why you’ll see E Ab B if you play an E Major Triad in the key of C. 

Every key has its own spelling table. This spelling table is based on my note naming preferences.  When I designed this system, most of my note-naming preferences were based on years of transcribing single-note solos (think Cannonball Adderley solos) where, for example, the most common way an F# was played in the key of C was in a line that always ascended. Sharps go up, Flats go down.  I have plans to revise this entire system and give the end user more choice with regard to how notes are named.

Change the key signature to a key that has the accidental you’re looking for if a chord is being spelled incorrectly.  i.e. set the key to E if you want to see G# when playing an E triad.

What happened to the 'No Key' option?

The ‘No Key’ option was identical to being in the key of C.  It used the same spelling table (explained above) as the key of C.  The only thing it did differently was change the text above the treble clef in the Manuscript View to say “Key: No Key”, instead of “Key: C”.  Since this “feature” was essentially redundant, it was removed.

When I use the app with O.B.S. I experience a lot of latency

This is a problem with O.B.S. and is not a bug in ChordieApp.

ChordieApp is a very small application and has minimal latency when used by itself or with your DAW. 

Please see these search results regarding how to control Latency when using OBS: 

I have a question not answered here.

Send an email to