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### Chordal Analysis
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*xmlChordAna* is a python script that makes a chordal analysis of a MusicXML file.
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An interactive demo is avaiable on the
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[Chord Analysis](../keys09/abc2chord.html?../js/pre_wind.js) page. It runs the script on
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my server and formats the output in some neat html.
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At the command line *xmlChordAna* is used as follows:
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> ./xmlChordAna.py scorefile.xml
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The output is printed in plain text looks like this:
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File: bwv539p_arr.xml, ticks per quarternote: 384
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342 note groups, 102 chord segments
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Key: Am, confidence: 33%
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---- chord Dmin, score: 90%
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0 D3, D4, F4, A4
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2 D3, F4, A4, D5
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2 1/2 F4, A4, D5, D3
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3 F4, A4, D5, C#3
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3 1/2 F4, A4, D5, D3
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---- chord Ehdim, score: 75%
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4 D5, E3, E4, G4
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---- chord C#hdim, score: 92%
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5 E3, E4, G4, C#5
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5 1/2 E3, E4, G4, B4
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6 E3, E4, G4, C#5
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6 1/2 E4, G4, C#5, E3
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7 E4, G4, C#5, D3
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7 1/2 E4, G4, C#5, E3
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See [this explanation](https://wim.vree.org/keys09/uitleg.html) for more info.
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### KeyScape
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On the [KeyScape](../keys09) page you can find two other interactive demos. One makes
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a *keyscape* from a MIDI file. The other runs the same chordal analysis as *xmlChordAna*,
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but for a MIDI file. There is no download page (yet) for these programs.
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### B40 notes
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*xml2b40* is a python script to convert a MusicXML file to a list of B40 events.
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It is invoked from the command line as follows:
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> ./xml2b40.py -t 384 scorefile.xml
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and produces the following output:
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0 129
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0 169
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0 180
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0 192
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768 -192
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768 -169
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768 192
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768 209
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960 -129
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960 129
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1152 -129
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1152 124
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1344 -124
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1344 129
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1536 -192
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1536 -180
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...
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Each line contains two numbers: the time and a B40 note.
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*TO DO: More explanation*
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