Automatic Chord Identification and Entry
This would be designed to analyze the notes of each chord in a score (most likely a song or hymn), identify the name of the chord, and place it in the proper place in the score (above the G staff in standard notation).
Comments
See http://musescore.org/en/project/findharmony
In reply to See by Jojo-Schmitz
Thank you for posting this script. It is great to see someone trying to fulfill the need!
How do I get it to work, though?
Here is my latest hymn: ICanSee.mscz
I select the menu entry and it claims to find 0 harmonies. If I select all of the measures in the score, I still get the same result. If I select a note or a chord, it is still the same result. I put it in note-entry mode, and it still finds no harmonies.
Since I am writing hymns, each system of the score spans two staves (G clef and F Clef), so the chord will span those staves as well.
That's not what MuseScore understands to be a chord, it needs to be notes in one stem. It may be possible to extent hat plugin to traverse voices and staves though.
But see also http://musescore.org/en/project/plode, maybe that'd hell here.
In reply to That's not what MuseScore by Jojo-Schmitz
That helped, but here is the output that I get (it seems there is a font problem left, and the location that the chord name gets placed needs to be above the staff):
![Screenshot - 09152013 - 04:38:11 PM.png]( "Screenshot - 09152013 - 04:38:11 PM.png")
In reply to That helped, but here is the by Billsey
I discovered a workaround.
It is a bit tedious, at least for a non-coder like myself, but here it is:
Rosegarden includes a ruler that displays the chords it finds in a MIDI file. Those can be used to manually enter the chords into MuseScore.
Rosegarden is an open source application, so, perhaps the code that does this for Rosegarden can be used to get the same sort of functionality into MuseScore.
In reply to That helped, but here is the by Billsey
Gave this a little love:
https://github.com/andresn/standard-notation-experiments/blob/master/Mu…
- Fixed font / encoding issue
- Refactored a little so I could:
- Position chord name above staff
- Styled font to Arial, 8pt, Orange
To tinker more with styling and position, check out how I did this at line 107 here:
https://github.com/andresn/standard-notation-experiments/commit/d64ae88…
In reply to Gave this a little by Drace07
Maybe you could add this to the plugin repository?
In reply to Maybe you could add this to by Jojo-Schmitz
Sure, so I noticed a "View Pending Patches" link here [1], but how do I actually go about submitting a patch?
Thanks in advance.
[1] http://musescore.org/en/project/findharmony
In reply to Sure, so I noticed a "View by Drace07
Just a heads up I ported over the js to a .qml file to be able to run in MuseScore 2.0:
https://github.com/andresn/standard-notation-experiments/tree/master/Mu…
I refactored a lot of the code in the process, so any issues, please file here:
https://github.com/andresn/standard-notation-experiments/issues
@ Jojo-Schmitz, I'm going to create a different Github repo for just this feature, experimenting with ideas in this thread and some I've been ruminating on, to eventually submit to you guys as a standalone plugin. My focus though is going to be on developing for 2.0.
In reply to Sure, so I noticed a "View by Drace07
I meant you could add a new project to the plugin repository: http://musescore.org/node/add/project-project
And if it works for 2.0 (too), make sure to mention that in the description! So far very few plugins from that repository are ready for 2.0, like note names, color notes, color voices.
Well, these aren't added as true chord symbols, because the plugin framework does not support that. So they are plain text only and are really just for informational purposes. If you want true chord symbols (with nice rendering, ability to transpose, export to MusicXML , etc) you will have type them in manually. But at least the plugin can help you figure out what the chords are if you don't know. Do note, though, that it is almost never the case in the real world that auto-generated chord symbols would be of much use. Far too many complexities, like the possibility of chords being split between voices or staves or arpeggiated, the likelihood of incomplete chords, the presence of non-chord tones, the presence of passing chords that should not be notated, etc. It's just not a solvable problem in the general case.
In reply to Well, these aren't added as by Marc Sabatella
Thanks, Mark.
I understood that. I can move the notation to read and copy it to the real score, no problem. Right now, I'm just trying to find out why each one seems to have an A-caron and superscript attached to it. If I can figure that out, I'm probably good to go.
In reply to Well, these aren't added as by Marc Sabatella
Adding chord names via the plugin framework is possible, there they are called harmonies, see http://musescore.org/en/plugin-development/harmony-object
Ah yes, my mistake. You can create them, you just can't read them, and it's usually the latter people want to do.
You may check http://musescore.org/en/project/magicchords -- I have patched it last year so that it is able to detect simple harmonies in a reasonable time.
Plugin uses home-made ad-hoc algorithm, I guess there are better ways to do it. Does anyone know any reference (a link to a publication) that explains how humans do it? I would be glad to read it and try to improve the plugin.
In reply to You may check by anatoly.gorbunov
Hi Anatoly, Music21 has a commonName attribute for Chord and can label them from a list of pitch. See http://web.mit.edu/music21/doc/moduleReference/moduleChord.html
It should also be possible to make a test file containing all the possible chords since there are only 4083 possible chords https://groups.google.com/forum/#!topic/music21list/LFpnAZICK48 and only 349 chords if you don't consider the pitch http://solomonsmusic.net/pcsets.htm
In reply to Hi Anatoly, Music21 has a by [DELETED] 5
I guess that it is rarely needed to try to detect current chord from a list of all possible chords, because there are some notes in melodies that are just transitional relative to a current chord.
For example, consider that you have harmony E---|A---|B---, and a melody like e, f#, e, g#|, a, b, a, c#|, b, c#, c#, d#. Notice that f# is a transitional note in E chord, thus most probably we do not need to consider it while detecting a chord say for a current bar. This leads to conclusion that some notes are excessive, and we must ignore them if we really want to detect something meaningful.
As I see that other people need this feature too, I will try to find my time to improve the plugin, so that it at least supports jazz chords like A7, A9, A11, A13.
As far as I remember, the plugin currently operates on a selected staves. In case there is no selection, entire score should be used. I have not tested it for more than half a year, though, so feel free to fire bugs/improvement requests.
Thank you, Anatoly. I'll give it a look. If you can extend it to work on both treble and bass clefs at the same time (treating them as though they were one staff instead of two), it will be very useful for hymns (such as I compose).
In reply to A Useful Addition by Billsey
Hi all, I just read here: https://musescore.org/en/project/chordidentifier
it seems interesting
In reply to Hi all, I just read here: by Shoichi
WOW! @rousselmanu, many thanks for this plugin !!!!!
In reply to WOW! @rousselmanu, many by mdi1972
I'm glad that you like it!
Hi!
This thread is now 3 years old :-), but if you are still looking for automatic chord identification I just made a plugin for Musescore 2 that does exactly what you asked for.
Here it is: https://musescore.org/en/project/chordidentifier
Hope it helps!
In reply to Hi! This thread is now 3 by rousselmanu
I believe I installed it correctly but I don't know how to actually use it. Can you help, please?
In reply to I believe I installed it… by paullstoomase
Installed what exactly and for which version of MuseScore?
This thread is now 6 years old and we're on MuseScore 3 meanwhile...