Frequently Asked Questions

What is Chet?

Chet is an ear training and music theory app for musicians of all levels. You can compete with other musicians to achieve high scores or play at your own pace in a wide variety of games.

What is ear training and why should I focus on it?

Ear training is the practice of identifying musical concepts, like melodies, scales, and chords, solely through listening. Musicians train their ears because it strengthens the connection they have with their instruments. A musician with a trained ear can easily play back a melody that they hear. They can also improvise over a chord progression they've never heard before, or imagine a melody inside their head and play it on their instrument. By working on ear training, you will vastly improve your skills not only on your instrument, but also in music theory, composition, and improvisation.

What are the three different modes of Chet and how do they work?

The three different modes of Chet are the Path, Library, and Challenges.

In the Path, Chet will guide you through a learning path called Foundations. To move ahead in the path you will need to earn at least one star per game. If any part of the path feels too easy, you can skip units by passing one of the 'Jump Ahead' tests.

In the Library you can work independently on a variety of topics like intervals, scales, and tunes. You will have around 60 or 90 seconds to answer as many questions as you can.

In Challenges, you can test your overall fluency in timed competitions. Each time you make a mistake, you will get a strike. If you get three strikes or the timer runs out, the game will end. We recommend starting with the 'All-Around' challenge. Challenges are not available to complete beginner users.

Where should I start on Chet?

If you are a beginner, or someone with little or no experience with ear training and music theory, we recommend starting in the Path. Once you’ve made some progress, try some beginner games in the Library.

For intermediate users, or users with a substantial amount of experience with ear training and music theory, we recommend starting in the Collections. If you prefer guided practice, try starting on Units 3 or 4 in the Path by passing one of the 'Jump Ahead' tests. If you want to compete in more difficult competitions or test your overall fluency, try some of the Challenges.

For advanced users, or professional level musicians, we also recommend starting in the Library. If you want to compete in more difficult competitions or test your overall fluency, try some of the Challenges.

How does scoring work?

In timed games, you earn 100 points for a perfectly answered question. You can divide 100 by the total amount of notes in a question to find the point value of one note. For example, the point value of one note in a question with four notes is 25 points.

In Challenges, you earn 1 point per question. If you get three questions wrong, or if the timer runs out, the game will end.

In the Path, games are untimed and each question is worth 1 point. You cannot lose points by answering questions incorrectly in untimed games.

What is Practice Mode and how do I use it?

Practice mode is an unscored and untimed mode where you can work on questions you have struggled with in the past.

You can select the number of questions you’d like to practice by using the dropdown menu in the upper right-hand corner.

What are the different collections in the Library?

The collections of Chet are:

  1. Intervals: The distance between two notes
  2. Scales: Ordered sequences of notes
  3. Arpeggios: Chords played one note at a time
  4. Chords: Multiple notes played at the same time
  5. Progressions: Multiple chords played in succession
  6. Featured: New games and other recommended games
  7. Tunes: Famous melodies from real music, performed by world-class artists
  8. Tonality: Melodies based on the major and minor scales
  9. Atonal: Random sequences of notes
  10. Theory In Context: Applying music theory to real music

How do I connect a MIDI keyboard?

One of the most fun and useful ways to use Chet is with a MIDI keyboard. In order to do this, you’ll need to purchase a ‘USB type B to lightning adapter’ and a MIDI keyboard. We highly recommend the Korg Microkey keyboard, although any USB MIDI keyboard should work.

You can also connect a bluetooth-enabled MIDI keyboard by going to settings, clicking on Bluetooth MIDI settings, and finding your device.

Once you’ve connected your midi keyboard to your phone, you will see a small midi icon in the upper right-hand corner of Chet confirming that your device is connected.

How do I compete on the leaderboards, and how do people get such high scores?

To compete on leaderboards, you’ll need to sign in to Chet. You can do that by clicking on the hamburger icon in the upper right-hand corner, and clicking ‘sign in’.

Some of the scores on Chet are impressively high, and many people wonder how they could even be possible. It’s important to not be discouraged by high scores, and rather use it as inspiration to get better!

To compete for first place, you’ll most likely need to increase your speed to 2x. You can do this during a game by clicking the + button where it says ‘1x tempo’.

You’ll also need to answer questions very quickly, which will take practice and repetition.

Finally, using a MIDI keyboard can increase how quickly you can answer notes. If you’re a pianist and want to compete intensely, we highly recommend connecting with MIDI.

If I want to practice perfect pitch, can this app help with that?

Yes! If you have perfect pitch, or are interested in training your perfect pitch, you can turn on perfect pitch mode in settings. In this setting, the first note of every question won’t be given to you.

I can’t hear anything. What should I do?

First check if the volume of your phone is working on other apps. If not, try restarting your phone.

If other apps have sound, but Chet doesn’t, try closing the app and reopening it.

If that doesn’t help, click on the hamburger icon on the upper right, go down to user settings, and click sound levels. Make sure none of the sounds are set to 0, and if they are, please click the ‘reset’ button on the upper right.

If you’re still having issues, and only if you are signed in on Chet, you can try deleting the app and re-downloading Chet from the App Store. You can then log back in to your account to restore any progress. If you do this without an account, your progress will be lost!

Finally, if you’re still having issues, you can shake your phone, click ‘Report a Bug’, and send in a report to us. You can also email us at