Chord Analyzer, free chord analyzer software downloads. IntelliVIEW Report Analyzer is an interactive analytic tool that delivers ad hoc analysis and custom data visualization capabilities to business users. Jan 17, 2013 Chordata is a simple but powerful application that analyses the chords of any music file in your computer. You can use it to travel back and forward the song while watching insightful visualizations of the tonal features of the song.
News
2019-09-24 The Ph.D. thesis regarding harmony-analyser work is finally done & defended! The thesis 'Cover Song Identification using Music Harmony Features, Model and Complexity Analysis' is available on the university website and was well-received by the jury at Charles university. Ladislav Marsik is ready to continue the research outside the university now, as an open-source initiative. The goals are now set to make the app more portable, and/or available online.
2019-06-26 Our harmony-analyser research won the Special award of the Joseph Fourier Prize competition 2019. We were awarded 50,000 core hours on the ANSELM supercomputer. Thank you French Embassy of Czech Republic and Atos for the opportunity to present this research infront of the jury.
2019-05-01 The research topic was selected as a contestant for Charles University on the Joseph Fourier Prize competition 2019 (organized by French Embassy and Atos), an excerpt of the recently submitted PhD thesis 'Cover Song Identification using Music Harmony Features, Model and Complexity Analysis' will be presented by Ladislav Marsik.
2018-12-10 A new journal article has just been published in the Volume 12/4 (December) of the International Journal of Semantic Computing! Its main contribution is the Cover Song Identification on our Kara1k dataset within the KaraMIR project of three universities. Our last year's IEEE Best Paper nominee was selected to form the basis of this extended article.
2018-01-19 Kara1k dataset publication is now available in IEEE Xplore library.
2017-12-19 Kara1k dataset with our harmony-analyser features is now fully available! Our work was awarded a Honorable Mention by the chairs for 6 best papers on IEEE ISM 2017 in Taichung, Taiwan. Please see the conference poster and presentation to get a grasp on how to utilize these features and dataset for your own research.
2017-10-01 harmony-analyser was used to extract features for the new Kara1k dataset along other feature extraction tools such as Marsyas, YAAFE or Essentia. The dataset and results will be presented on IEEE ISM 2017 conference in Taichung, Taiwan. This dataset was built thanks to a partnership with Recisio's KaraFun karaoke application.
2017-06-13 We travel to Poland to present first results of our harmony analysis on Cover Song Identification task, as a part of CISIM 2017 conference. Paper published in Springer LNCS series.
2017-05-09 A little article by the Charles University (in Czech language) written about the recent ACM SRC competition, where the harmony-analyser project was presented by Ladislav Marsik.
2017-04-21 Our contribution was awarded a 1st place in ACM SIGAPP SAC 2017Student Research Competition! We presented a poster, oral presentation and a live demo of our tools to the SRC judges. We advanced to the ACM SRC Grand Finale for all the SRC Winners. Research abstract soon to appear in the ACM Digital Library.
2017-04-11 We presented how to use our tools on DATESO 2017 conference. Paper or presentation for download.
2016-12-16 We were on 2016 Joint WOCMAT - IRCAM Forum Conference in Taiwan! Check out the contribution paper or presentation.
2016-12-07 Preparing the new GUI for version 1.2 - see sneak peak in the screenshots.
2016-09-19 Version 1.1 is now available (new Chroma distances and visualizations).
• See below for explanations, examples and other details
The harmonic analyzer tool understands these chords:| Chord type | Code | Structure | Example | |
| Major | M | R,M3,P5 | CM | C-E-G |
| Major 7th | M7 | R,M3,P5,M7 | CM7 | C-E-G-B |
| Major 9th | M9 | R,M3,P5,M7,M9 | CM9 | C-E-G-B-D |
| Major 6th | M6 | R,M3,P5,M6 | CM6 | C-E-G-A |
| Major add 9th | M/9 | R,M3,P5,M9 | CM/9 | C-E-G-D |
| Major 6th/9th | 6/9 | R,M3,P5,M6,M9 | C6/9 | C-E-G-A-D |
| Minor | m | R,m3,P5 | Cm | C-Eb-G |
| Minor 7th | m7 | R,m3,P5,m7 | Cm7 | C-Eb-G-Bb |
| Minor 7th b5 | m7b5 | R,m3,d5,m7 | Cm7b5 | C-Eb-Gb-Bb |
| Minor 9th | m9 | R,m3,P5,m7,M9 | Cm9 | C-Eb-G-Bb-D |
| Minor 11th | m11 | R,m3,P5,m7,M9,P11 | Cm11 | C-Eb-G-Bb-D-F |
| Dominant 7th | 7 | R,M3,P5,m7 | C7 | C-E-G-Bb |
| Dominant 9th | 9 | R,M3,P5,m7,M9 | C9 | C-E-G-Bb-D |
| Dominant 11th | 11 | R,M3,P5,m7,M9,P11 | C11 | C-E-G-Bb-D-F |
| Dominant 13th | 13 | R,M3,P5,m7,M9,P11,M13 | C13 | C-E-G-Bb-D-F-A |
| Dominant 7th #9 | 7#9 | R,M3,P5,m7,A9 | C7#9 | C-E-G-Bb-D# |
| Dominant 7th b9 | 7b9 | R,M3,P5,m7,m9 | C7b9 | C-E-G-Bb-Db |
| Augmented | + | R,M3,A5 | C+ | C-E-G# |
| Dominant 7th #5 | 7#5 | R,M3,A5,m7 | C7#5 | C-E-G#-Bb |
| Dominant 7th b5 | 7b5 | R,M3,d5,m7 | C7b5 | C-E-Gb-Bb |
| Major 7th #5 | M7#5 | R,M3,A5,M7 | CM7#5 | C-E-G#-B |
| Major 7th b5 | M7b5 | R,M3,d5,M7 | CM7b5 | C-E-Gb-B |
| Diminished | dim | R,m3,d5 | Cdim | C-Eb-Gb |
| Diminished 7th | dim7 | R,m3,d5 | Cdim7 | C-Eb-Gb |
How to use the harmonic analyzer tool
Overview
The tool helps you analyze and understand chord progressions. It allows you to enter a sequence of chords and read the following information:
- Chord notes – The notes that make up the chords.
- Intervals – The chords' internal interval structure.
- Voicings – A graphic that shows how the notes move from one chord to the next.
- Parent Scales – All the scales that are related to the chords.
- Tonal Centers – The tonal centers (and related key changes) implicit in the progression.
Here are all the details:
Entering the chords
You can write a chord progression in the above text area and click the [Analyze] button to see the results.
Use spaces to separate the different chords. Don't use spaces inside chords. You can enter up to 20 chords at a time.
The supported types of chords are listed above.
The tool also understands a few common variations of the chord types. For example, Cm7, C-7, and Cmin7 are all understood. If in doubt, use the codes in the chord table above.
The tool understands both C-D-E and Do-Re-Mi chord notations. The results are displayed with the same notation used as the input.
The tool skips the chords that it cannot decode.
Chords notes
After analyzing a progression, the first thing that the tool reports is simply the name of the notes that constitute the chords.
So, for example, if you enter a Cmaj (C major) chord the analyzer writes the notes C E G under it, which are the notes that produce the C major chord.
Benefits:
You don't need to read all the chord notes to understand the progression, but sometimes it can be useful to have them written there.
Ideally, though, a competent musician should know the notes that make up the various chords pretty much effortlessly and automatically. Having those notes always written there can help you gradually familiarize with them even without making special efforts.
Chord structures
Right below the chord notes are the intervals that define the chord, i.e. the chord structure.
For example, the C major chord is made of the notes C-E-G, and its structure is R-M3-P5 which is shorthand for 'Root', 'Major 3rd', and 'Perfect 5th'.
This means that the C major chord is made of the note C (the Root, or 'R'), the note E (a Major 3rd, or 'M3', up from C), and the note G (a Perfect 5th, or 'P5' up from C).
A table with all the intervals is displayed in Appendix 1 at the bottom of the page.
Benefits
Like with chord notes, it's very desirable for a musician to know the structure of all the chords that one uses. Having this structure always available in front of your eyes is both a useful reference when you need it, and also a way of gradually memorizing it without conscious effort.
Voicings
The voicings row contains 12 lines representing one octave of notes (from C on the bottom to B on the top). Under each chord, the chord's notes are highlighted in red.
This graphic helps you literally see how the various notes -- the various 'voices' -- move up and down from one chord to the next.
Benefits
Seeing the chord progression visualized in this way gives you a lot of information in an intuitive and easily understandable way.
For example, one useful piece of information that is clearly visualized in this graphics is the 'distance' between one chord and the next. In particular, when two nearby chords have two or three notes in common, they can be considered closely related and most likely belong to the same tonal center.
Furthermore, if while watching the graphic you can also play or listen to the chord progression, you will probably get many other insights.
As another example, if you are experimenting with a chord progression, and you are not completely satisfied with a certain chord or a certain modulation, having a visual display of the chords' notes could give you a tip on which note to change to produce a different and better effect.
Parent scales
A 'parent scale' of a chord is simply a scale whose notes can produce the given chord.
For example, the C major scale (C-D-E-F-G-A-B) is a parent scale of the C major chord (C-E-G) because all the chord notes are present in the scale.
The G major scale (G-A-B-C-D-E-F#) is also a parent scale of C major chord because it also contains the C-E-G notes. On the other hand, the A major scale (A-B-C#-D#-E-F#-G#) is not a parent scale of the C major chord because it doesn't contain all the chord tones (it contains the E but it doesn't contain C or G)
Major and minor chords have several possible parent scales. For example, the C major chord can be derived from the C major scale, from the G major scale, from the F major scale, and from the E minor harmonic scale. Other chords, such as the Dominant seventh, have only one major and one minor harmonic parent scale. All these scales are listed in the Parent Scales row.
Benefits
In general, for composition or improvisation purposes, the relationship between scales and chords is fundamental. And in particular, when you have a chord progression and you need to compose or improvise a melody on it, one of the first things you'll need to know is which scale or scales you may use as the primary source of notes.
The more you familiarize with this type of harmonic analysis, the easier it will become for you to instantly know which scales are related to the different chords.
Tonal Centers
When two or more successive chords have a parent scale in common, that common underlying key is called a 'tonal center'.
A tune may have a single tonal center from beginning to end (like many pop and rock songs for example) or have a few different ones (for example, the verse and chorus parts could be in different keys and therefore produce different tonal centers). In Jazz sometimes the key changes very often and the improviser has to be constantly changing tonal center accordingly.
When analyzing the chords, this tool explores all the possible tonal centers and displays them as different colored blocks. The parent scale of that tonal center is written inside each block.
So, for example, if the analyzer finds that the first three chords can be grouped as a C major tonal center and that the next three chords can be grouped in a D minor harmonic tonal center, it will place a colored block with 'C' under the first three chords, and another colored block marked 'D mh' under those other three chords. (mh stands for Minor Harmonic scale. If no scale is indicated, it means a standard major scale)
Benefits
Determining the tonal centers of a chord progression is a fundamental step when preparing for improvisation on those chords. If this process is still difficult for you, use the analyzer tool with different chord progressions, observe the relationship between chords, parent scales and tonal centers, and you will soon learn to do it by yourself.
Examples
Here are a few common chord progressions. You can click and see how they get analyzed.
Note on major vs. minor tonal centers
Every major key, or major tonal center, is associated to a corresponding relative minor key and tonal center.
For example, the relative minor key of C major is A minor, and the relative major key of C minor is Eb major. (A relative minor key is always a minor third below the relative major key)
This analyzer tool shows the tonal center always as the major scale, but depending on the melody of the tune (not analyzed here) the tonal center may be equally described in terms of either the major or relative minor key.
In practice this makes little difference -- when you see a C major tonal center, you'll know that you can use the C major scale, or the A minor scale, which is the same thing.
A table with the list of all the corresponding major and minor keys is displayed in Appendix 2 at the bottom of the page.
While I avoided writing both the major and minor relative keys in the tonal center blocks for simplicity, I may add that feature if there is a significant request for it.
Related MTC Courses
These principles of harmonic analysis are uses in several places in the Musician Training Center software.
The Improvisation By Degrees course, for example, trains you extensively in mastering the chord notes and the parent scales as the basis for improvisation.
The Guitar Scales Method includes a play-along tool where you train play the parent scales of all kinds of chords, until the mechanism becomes effortless and automatic.
For more details, and to see these interactive courses in action, download Musician Training Center and try it for yourself.
Midi Chord Analyzer Software
Support
If you have any questions, or if you'd like to suggest some additions to this harmonic analyzer, please contact support@micrologus.com
Appendix 1 -- Intervals table
Guitar Chord Analyzer Software
| Interval name | Symbol | Distance (semitones) | Example |
| Perfect unison | P1 | 0 | C-C |
| Minor 2nd | m2 | 1 | C-Db |
| Major 2nd | M2 | 2 | C-D |
| Minor 3rd | m3 | 3 | C-Eb |
| Major 3rd | M3 | 4 | C-E |
| Perfect 4th | P4 | 5 | C-F |
| Augmented 4th | A4 | 6 | C-F# |
| Diminished 5th | d5 | 6 | C-Gb |
| Perfect 5th | P5 | 7 | C-G |
| Augmented 5th | A5 | 8 | C-G# |
| Minor 6th | m6 | 8 | C-Ab |
| Major 6th | M6 | 9 | C-A |
| Minor 7th | m7 | 10 | C-Bb |
| Major 7th | M7 | 11 | C-B |
| Perfect octave | P8 | 12 | C-C' |
| Minor 9th | m9 | 13 | C-D'b |
| Major 9th | M9 | 14 | C-D' |
| Augmented 9th | A9 | 15 | C-D'# |
| Minor 10th | m10 | 15 | C-E'b |
| Major 10th | M10 | 16 | C-E' |
| Perfect 11th | P11 | 17 | C-F' |
| Augmented 11th | A11 | 18 | C-F'# |
| Perfect 12th | P12 | 19 | C-G' |
| Minor 13th | m13 | 20 | C-A'b |
| Major 13th | M13 | 21 | C-A' |
Appendix 2 -- Relative Major and Minor Scales table
Chord Analyzer Software Free
| Major | Relative Minor |
| C major | A minor |
| Db major | Bb minor |
| D major | B minor |
| Eb major | C minor |
| E major | C# minor |
| F major | D minor |
| Gb major | Eb minor |
| G major | E minor |
| Ab major | F minor |
| A major | F# minor |
| Bb major | G minor |
| B major | G# minor |