Humdrum validity check

[sertansenturk]

@Rafael-Caro has tried to open the krn files using the modules in music21 (http://web.mit.edu/music21/doc/moduleReference/moduleHumdrum.html) and the files faile to be read. It might be because:

• The files are not exactly HumDrum compatible (most likely).
• Wrong encoding, stray character, newline definition etc.
• music21 does not support some parts of the Humdrum microtonal representation used in this repository.

I will try to find the reason and solve this issue accordingly.

[Rafael-Caro]

I tried this Mozart score http://kern.ccarh.org/cgi-bin/ksdata?l=users/craig/classical/mozart/piano/sonata&file=sonata01-1.krn&f=kern, and it was loaded successfully.

This is the error shown when trying to load @sertansenturk 's score in music21:

In [12]: s = converter.parse('U0285.krn')
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-12-2121f242c19d> in <module>()
----> 1 s = converter.parse('U0285.krn')

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/converter.pyc in parse(value, *args, **keywords)
   1093         return parseData(value, number=number, format=m21Format)
   1094     elif os.path.exists(value):
-> 1095         return parseFile(value, number=number, format=m21Format, forceSource=forceSource)
   1096     elif (value.startswith('http://') or value.startswith('https://')):
   1097         # its a url; may need to broaden these criteria

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/converter.pyc in parseFile(fp, number, format, forceSource)
    998     '''
    999     v = Converter()
-> 1000     v.parseFile(fp, number=number, format=format, forceSource=forceSource)
   1001     return v.stream
   1002 

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/converter.pyc in parseFile(self, fp, number, format, forceSource)
    818                     raise ConverterFileException('cannot find a format extensions for: %s' % fp)
    819         self._setConverter(useFormat, forceSource=forceSource)
--> 820         self._converter.parseFile(fp, number=number)
    821         self.stream.filePath = fp
    822         self.stream.fileNumber = number

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/converter.pyc in parseFile(self, filepath, number)
    275     def parseFile(self, filepath, number=None):
    276         '''Open Humdram data from a file path.'''
--> 277         self.data = humdrum.parseFile(filepath)
    278         #self.data.stream.makeNotation()
    279 

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/humdrum/__init__.pyc in parseFile(filename)
    163     shortcut to :class:`~music21.humdrum.spineParser.HumdrumFile`.  Most users will call `converter.parse()` instead.
    164     '''
--> 165     return spineParser.HumdrumFile(filename)
    166 
    167 def parseData(data):

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/humdrum/spineParser.pyc in __init__(self, filename)
    703             try:
    704                 humFH = open(filename)
--> 705                 self.eventList = self.parseFH(humFH)
    706             except IOError:
    707                 raise

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/humdrum/spineParser.pyc in parseFH(self, fileHandle)
    714         for line in fileHandle:
    715             spineDataCollection.append(line)
--> 716         return self.parseLines(spineDataCollection)
    717 
    718 class HumdrumLine(object):

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/humdrum/spineParser.pyc in parseLines(self, dataStream)
    160 
    161         self.parsePositionInStream = 0
--> 162         self.parseEventListFromDataStream(dataStream) # sets self.eventList and fileLength
    163         try:
    164             assert(self.parsePositionInStream == self.fileLength)

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/humdrum/spineParser.pyc in parseEventListFromDataStream(self, dataStream)
    349                 continue # technically forbidden by Humdrum but the source of so many errors!
    350             elif re.match('\!\!\!', line):
--> 351                 self.eventList.append(GlobalReferenceLine(self.parsePositionInStream, line))
    352             elif re.match('\!\!', line): ## find global comments at the top of the line
    353                 self.eventList.append(GlobalCommentLine(self.parsePositionInStream, line))

/usr/local/lib/python2.7/dist-packages/music21-1.7.1-py2.7.egg/music21/humdrum/spineParser.pyc in __init__(self, position, contents)
    816         noExclaim = re.sub('^\!\!\!+','',contents)
    817         try:
--> 818             (code, value) = noExclaim.split(":", 1)
    819             value = value.strip()
    820             if (code is None):

ValueError: need more than 1 value to unpack