Home Tech 9 Best Music Key Identifier Tool To Identify Song Key

9 Best Music Key Identifier Tool To Identify Song Key

In today’s world, DJs must put in a lot of work to find easy and reliable song keys. Fortunately, there are several apps, websites, and VST plugins that offer various levels of accuracy. 

As a musician myself, I have found many of these apps invaluable. But these even go beyond the realms of playing an instrument.

Music producers often will be in situations where they seem stuck trying to figure out chord-based scales that had just crossed their minds or may want to find out the music key of a recently released song. 

Finding which songs are in which key can be tricky, especially for newbies. 

Together we will be exploring lots of music key identifier tools that will help you find out the music keys for any song of your choice.

Best Music Key Identifier – Our Top Pick👌👌

Here are a few that have bailed me out.

1. Mixed in Key

Mixed In Key is a key detection software that is said to be one of the best accurate music key identifiers ever known. It has an accuracy of 10% more than any other identifier software.

It can perfectly produce the key of any song. It has an easy-to-use user interface with a catchy website design accessible to all music lovers.

Introducing: Mixed In Key 10 - Software for the world's best DJs and Producers

This software was designed to get the true key of any song, loop, or sample. It took the combined work of American, British, and Swiss data scientists to create its new version with the combination of algorithms that supersedes every result the older version provides. 

Mixed in key can automatically come up with cue points in Pioneer DJ’s Rekordbox software as its latest version has advanced machine learning and data science that helps to improve the detection of keys in any song giving you quality results you can never doubt.

Features of Mixed-in Key:-

  • It uses grand piano added in the software to vet its results
  • It has an automated way of including as many as eight cue points
  • It has an advanced key identifier system that helps users find songs, samples, or loops to mix
  • It has an energy level detector that joins songs with a similar tempo together
  • Mixed in key results is the store using a customized ID3 tagging in any of your music files

Mixed in key can be downloaded for free on any Mac and Windows operating system. 

2. Djay Pro

This DJ software tool has one of the most advanced and polished features that identifies music keys, beats, and BPM.

It uses the frequency-based color of the waveform to detect keys easily. It has an attractive interface that gives its users confidence to navigate through its dashboard.

Djay Pro has a distinctively unique surface dial support that makes browsing through its music library look effortless. It gives a sort of DJ interaction with music lovers. 

djay Pro AI for Mac - Isolate beats, instruments, and vocals in real-time!

Features of Djay Pro:-

  • It has a support system for both touchscreen and desktop
  • The music library comprises more than 20 million songs
  • All you need to set up the DJ system is a simple plug and play
  • Its audio processing features are advanced, and it supports adjustable audio mixing crossfader curves
  • Channels can be monitored using its multi-channel audio interface

3. GetSongKey

This (Visit Here) music key identifier tool is useful for DJs and songwriters. It has a platform with over six million databases of music keys and other important information for music lovers.

Best Music Key Identifier

All its tracks are stored in four distinct categories to access music samples in the same genre easily.

You do not necessarily have to download the tool on your device; you can compose any music directly from its website.

Features of GetSongKey:-

  • It gives the best keys for harmonizing mixed DJ songs
  • Extraction of the chord progression from any music can be done
  • Transposer can be used to transpose any  chord into a different chord of your choice
  • It is unique and can accurately detect the key of any song
  • It has a key notation converter that can change any music key between the Open key mutation or Camelot wheel.

4. Audio Key Chain

AutokeyChain helps music fans detect music key identifiers by identifying the tempo of songs and searching for similar tracks that can be used to create mashups.

Music lovers can upload music of their choice and share them publicly or privately, depending on how they want to go about it. 

Best Music Key Identifier 1

Audio Key Chain is a free online tool that does not charge users. All you need to do is open a free account by signing up to view every feature available on the website.

Features of Audio Key Chain:-

  • It has an upload size limit of 15MB that supports MP3 and WAV files only
  • Edited songs can be saved publicly, and results can be shared
  • It has an editable track collection that users can use to correct any error or incompletion
You may like to read our guide on 9 Best Chord Finder Apps For Learning Songs on The Fly.

5. Mixxx

Mixxx is an open-source DJ tool integrating digital music files with pleasant live mixes. It can be used on Mac, Windows, and Linux operating systems. 

9 Best Music Key Identifier Tool To Identify Song Key

It provides its user’s tools like changing Beats Per Minute (BPM) and changing cover art. By right-clicking on any song, its users can modify any music of their choice.

Features of Mixxx:-

  • Several effects can be added, and tracks can be spun for many sound effects.
  • Turntables can be used on vinyl records so that playbacks can be controlled and music files can be scratched.
  • It, coupled with the BPM, helps locate upcoming music library tracks. 
  • To match the tempo of multiple tracks altogether, master sync can be used.

6. Scaler 2

Scaler is free, easy to use, and supported on any Windows and Mac OS. 

It has a vast knowledge of chords, harmony, and scales that comes with over 30 piano sounds, synth, guitar, and orchestral with genre-based music of 100, including a hundred new artists’ chord sets.

Scaler 2 - Complete Overview

It gives access through a three-zone connection which includes:-

  • The upper zone detection, where chords are viewed in incoming MIDI
  • The middle zone detection; shows the most accurate match for a scale combination or a combined scale presets
  • The lower zone detection allows music lovers to freestyle on several chord sequences of their choice.

Features of Scaler 2:-

  • MIDI export can be done by using a simple drag-and-drop function of the music file
  • It provides its users with over 400 chord sets.
  • Pianists can play complex songs on a MIDI keyboard with the help of the lock keys of chords

7. Tunebat

Tunebat has a database set of more than 40 million songs. It is a music key identifier that analyses songs that have been released. It is free and open-source to all Mac, Windows, and Linux operating systems.

It gives BPM information with recommendations on lots of harmonic mixing. This tool will help music producers effortlessly remix songs and help music lovers understand music much more.

Features of Tunebat:-

  • Audio Ph.D. professionals developed its music algorithms to ascertain that it performs accurately
  • It functions with a huge chunk of audio data sets using ML models
  • Calculations and music analysis can only be done in its browser
  • Files cannot be sent or shared with other machines 

8. Traktor Pro 3

This German-made tool especially focuses on developing the best software and hardware for DJ-ing pleasures. Traktor Pro can easily be used on your laptop while getting your groove on.

It has a new combination of harmonic mixing that lets its users detect the key of all music and help know the key that can sound pleasant with another key.

Getting started with TRAKTOR PRO 3 | Native Instruments

It has a system filled with open notes, not just the normal standardized notes. It is important for number, letter, and color markings to help you learn how to mix keynotes faster.


How do I figure out what key a song is in?

Looking through the key signature on sheet music is the quickest and most straightforward approach to determining the key of a song.

If its key signature is missing from the sheet music, you will need to examine the notes or chords in the song to determine the key.

How do I find the scale of a song?

Consider the song’s notes and attempt to determine if they are from a major or minor scale. The notes used in both scales are the same, although they begin in different locations.

You’ll be able to recognize the scale if you can see bits of one of these scales. You may also focus on the song’s opening and closing notes.

How do you identify key signatures?

The key signature is the note one-half step (semitone) above that last sharp. Major and minor keys may be mentioned in key signatures.

Get the name of the major key, then count back three half steps (a tone and a semitone) to find the name of the minor key. Recall that names are impacted by sharps and flats.

Is there an app to identify a song key?

Yes, several apps are available that can help identify the key of a song. Some popular options include KeyFinder, Mixed In Key, Tunebat, and Beatport Pro.

These apps analyze the song’s audio and provide information on the key, tempo, and other characteristics. Some apps require a paid subscription, while others offer limited features for free.

How do you determine what key a song is in?

One way to determine the key of a song is to listen to the melody and identify the tonal center or the note that the melody seems to “resolve” to. This is often the note that feels like “home” when you listen to the song.

Once you have identified the tonal center, you can use it to determine the song’s key. Another way is to use a musical instrument, such as a keyboard or guitar, to play the notes of the melody and find the pitch that sounds the most “at rest.”

Several online tools and mobile apps can help you identify the key to a song by analyzing its audio characteristics.

These tools use various algorithms to detect the most prominent pitch in the song and then suggest the key based on that pitch.

Can you tell what key a song is by ear?

A song’s key can be determined by ear, so yes. Try to discern the key’s tonic note by listening to the song’s harmony and melody as one method of doing this.

The song typically resolves to the tonic note with the most steady tone. You can use your understanding of music theory to identify the tonic note and then determine the song’s key.

With adequate preparation, this is undoubtedly doable, albeit it may require some practice and experience.

Is song key Finder accurate?

Song key finders’ accuracy varies with the specific tool used and audio quality. Some finders use more precise algorithms and work better with certain music or audio.

Song key finders generally determine the key of a song with reasonable accuracy by analyzing pitch and tonality for the key signature. However, accuracy can be affected by background noise and audio artifacts.

It’s recommended to double-check results by listening to the song and confirming the key using personal musical knowledge.

Is the first chord always the key?

The first chord in a song does not always indicate its key. Although it can provide a clue, it is not a reliable indicator.

At times, the first chord might be the tonic chord of the key, built on the first note of the key’s scale. Nonetheless, it could also be a different chord that introduces or establishes the song’s tonality.

To determine the key of a song, it is important to consider its overall tonality and chord progression rather than just the first chord.

Analyzing the melody, harmony, and chord progression can provide a more accurate determination.

How do you find the key of a song by the chords?

You can use several methods to identify a song’s key based on its chords. Here are a couple of approaches:

Find the tonic chord:– The tonic chord is built on the first note of the key’s scale and is typically the most stable chord in a song. Look for the chord that feels the most resolved or like “home,” as this could be the tonic chord. Once you find the tonic chord, determine the key by looking at the note on which it’s built.

Analyze the chords: Another method is to examine the chords used in the song and search for patterns that suggest a specific key.

For example, the “I-IV-V” progression is a common chord progression that includes the tonic (I) chord, the fourth (IV) chord, and the fifth (V) chord of the key’s scale. If you observe these chords frequently in a song, they might be in the key corresponding to those chords.

You can also look for chord changes that suggest a specific mode or scale. For instance, a minor key often features a minor VI chord or a minor iv chord, while a major key typically uses a major IV chord.

How do you tell if it’s major or minor key?

Listen to its tonality and mood to distinguish between a major or minor key in a song.

Major keys typically sound bright and cheerful, while minor keys often evoke feelings of sadness or introspection. If a song feels positive or uplifting, it may be in a major key. Conversely, if a song feels sad or reflective, it may be in a minor key.

Another way to differentiate between major and minor keys is to examine the chords used in the song. Major keys usually feature major chords, while minor keys utilize minor chords. The third note of a chord determines whether it is major or minor, so listen carefully to its quality.

For example, a song in the key of C major might use C major, F major, and G major chords, while a song in the key of C minor may use C minor, F minor, and G major (with a flatted third).

Occasionally, a song may use major and minor chords, making it harder to determine the key.

However, by considering the overall tonality and mood of the song, along with the chords used, you can often distinguish whether a song is in a major or minor key.

How do you know what key a song is in sharps?

To determine a song’s key in sharps, look at the sharps listed in the key signature. The key signature usually appears after the clef symbol at the piece’s start. It indicates which notes in the song are sharpened or flattened throughout the piece.

The sharps in a key signature appear in a specific order: F#, C#, G#, D#, A#, E#, and B#. These sharps rise in pitch order, each sharp indicating a note raised by a half-step in the scale.

For instance, if a song’s key signature has F# and C#, the song might be in G major or E minor, as these are the only two keys with those sharps.

Sometimes, a song may have accidentals (sharps or flats) not listed in the key signature, making it more difficult to determine the key.

However, by paying attention to the song’s overall tonality and chord progression, you can often estimate the key based on the sharps and accidentals present.

Is there a key finder?

Identifying the key of a song can be aided by various online tools and resources.

One such resource is software or web applications that analyze audio files and provide data about the key, tempo, and other musical features. Popular examples include Mixed in Key, KeyFinder, and Tunebat.

Databases and search engines, such as Chordify and SongKeyFinder.com, can also identify the key of a song through its chords or melody.

Mobile apps, including ChordIQ, KeyFinder, and SongKey, are another option for determining a song’s key.

Whether you are a musician, DJ, or music enthusiast, numerous tools and resources are available to help identify the key to a song.

Is there such a thing as a key finder?

Tools and resources are available to help identify a song’s key, known as “key finders” or “key detection software.”

Key detection software can analyze an audio file, providing data on the song’s key, tempo, and other musical characteristics. This software is useful for DJs, music producers, and musicians needing to mix or remix a song with other tracks.

Commercial key detection software applications include Mixed In Key, KeyFinder, and Tunebat, while free online tools like Song Key Finder, Chordify, and Hooktheory are also available.

Mobile apps like ChordIQ, KeyFinder, and SongKey are additional options to determine a song’s key, compatible with iOS and Android devices.

Overall, tools and resources can aid in finding the key to a song, regardless if you are a music enthusiast, professional musician, or DJ.

Is every song in a key?

Songs in most Western music genres are typically composed in a specific key. The key defines the song’s tonality, influencing its mood, melody, harmony, and structure.

While some genres, like experimental or atonal music, may not follow traditional tonal principles, most songs in popular genres, including rock, pop, jazz, and classical music, are composed in a specific key.

Even if a song changes the key or has multiple sections, each section is usually written in a specific key; therefore, although not all music follows traditional Western tonal principles, most popular songs are composed in a particular key.

What is the hardest chord to learn?

The hardest chord can vary depending on your skill level and playing style. However, certain chords are generally considered more difficult due to their complex fingerings or unusual shapes. Here are some examples:

F chord:- This chord is challenging for beginners because of the need to barre across multiple strings with one finger.

B chord:– This chord requires finger stretching across multiple frets and can be difficult for many guitarists.

C#m chord:– This chord necessitates a barre across four strings with the index finger, making it a challenge for beginners and those with small hands.

D# chord:– This chord requires a stretch across the first four frets, making it challenging to hold all the strings down firmly.

G7#9 chord:- This “Hendrix chord” chord involves using all four fingers and stretching them across multiple frets.

What chords are in the key of C?

The diatonic chords in the key of C major include:-

C (major)
D (minor)
E (minor)
F (major)
G (major)
A (minor)
B diminished (Bdim)

These chords are built using the notes of the C major scale (C, D, E, F, G, A, B) and are labeled with Roman numerals to indicate their position in the scale.

Major chords are represented by uppercase numerals, while minor chords are lowercase. The B diminished chord is denoted with a degree symbol (°) to show it is a diminished chord.

To summarize, the chords in the key of C major are C, Dm, Em, F, G, Am, and B°.

How do you find the 7 chords in any key?

To find 7 chords in any key, use the formula for diatonic chords. Diatonic chords are built using key notes, labeled with Roman numerals to indicate their position in the scale. The formula for diatonic chords in a major key:

I – ii – iii – IV – V – vi – vii°

Uppercase numerals represent major chords; lowercase numerals denote minor chords, and a degree symbol (°) indicates a diminished chord. The home chord of the key is the “I” chord, and the other chords follow in order of their position in the scale.

To find the 7 chords in a key, apply this formula starting with the home chord. For example, to find the chords in G major:

I – ii – iii – IV – V – vi – vii°
G – Am – Bm – C – D – Em – F#dim

Thus, the chords in G major are G, Am, Bm, C, D, Em, and F#dim.

Note that this formula applies only to major keys. Minor keys use a slightly different formula.

Final Thoughts

DJing can be so much fun. As fun-filled as it looks, it requires much music key identifier mastery. 

Finding the best software that will help you easily detect music keys without ruining your collection of songs can be such a relief. This software will help to support your music style and techniques and for some, you can receive direction on how to go about certain music trends.

So if you are thinking about being a DJ or a music producer, you should learn, understand, and master every chord that will make identifying music keys much easy for you as you progress. 

You can start with the helpful tools listed above regardless of whether you are a professional, a trained musician, or just a newbie. 

If you have additional insights on more key identifiers not on the list, let us know in the comment section.