def testDataSet():
fes = features.extractorsById(['ql1', 'ql2', 'ql3'])
ds = features.DataSet(classLabel='Composer')
ds.addFeatureExtractors(fes)
b1 = corpus.parse('bwv1080', 7).measures(0,50)
ds.addData(b1, classValue='Bach', id='artOfFugue')
ds.addData('bwv66.6.xml', classValue='Bach')
# ds.addData('c:/handel/hwv56/movement3-05.md',
ds.addData('hwv56/movement3-05.md',
classValue='Handel')
ds.addData('http://www.midiworld.com/midis/other/handel/gfh-jm01.mid')
ds.process()
print (ds.getAttributeLabels())
ds.write('d:/desktop/baroqueQLs.csv')
fList = ds.getFeaturesAsList()
print (fList[0])
print (features.OutputTabOrange(ds).getString())
for i in range(len(fList)):
# display scores as pngs generated by Lilypond
# if the most common note is an eighth note (0.5)
# (finds the two Handel scores)
if fList[i][2] == 0.5:
pass
# ds.streams[i].show('lily.png')
p = graph.PlotFeatures(ds.streams, fes[1:], roundDigits = 2)
p.process()
def music21ModWSGIFeatureApplication(environ, start_response):
'''
Music21 webapp to demonstrate processing of a zip file containing scores.
Will be moved and integrated into __init__.py upon developing a standardized URL format
as application that can perform variety of commands on user-uploaded files
'''
status = '200 OK'
pathInfo = environ[
'PATH_INFO'] # Contents of path after mount point of wsgi app but before question mark
if pathInfo == '/uploadForm':
output = getUploadForm()
response_headers = [('Content-type', 'text/html'),
('Content-Length', str(len(output)))]
start_response(status, response_headers)
return [output]
#command = pathInfo
formFields = cgi.FieldStorage(fp=environ['wsgi.input'], environ=environ)
# Check if form data is present. If not found, display error
try:
unused_subUploadFormFile = formFields['subUploadForm']
except:
html = """
<html >
<body style='font-family:calibri' bgcolor='#EEE' onLoad="toggleExtractors('m21')">
<table border=0 width='100%'>
<tr><td align='center'>
<table border=0 width='500px' cellpadding='10px' style='background-color:#FFF'>
<tr><td align='left'>
<h1>Error:</h1>
<p>Form information not found</p>
<p><a href='/music21/featureapp/uploadForm'>Try Again</a></p>
</td></tr></table>
</td></tr></table>
</body></html>
"""
response_headers = [('Content-type', 'text/html'),
('Content-Length', str(len(html)))]
start_response(status, response_headers)
return [html]
# Get file from POST
uploadedFile = formFields['fileupload'].file
filename = formFields['fileupload'].filename
uploadType = formFields['fileupload'].type
# Check if filename is empty - display no file chosen error
if filename == "":
html = """
<html >
<body style='font-family:calibri' bgcolor='#EEE' onLoad="toggleExtractors('m21')">
<table border=0 width='100%'>
<tr><td align='center'>
<table border=0 width='500px' cellpadding='10px' style='background-color:#FFF'>
<tr><td align='left'>
<h1>Music 21 Feature Extraction:</h1>
<p><b>Error:</b> No file selected</p>
<p><a href='/music21/featureapp/uploadForm'>Try Again</a></p>
</td></tr></table>
</td></tr></table>
</body></html>
"""
response_headers = [('Content-type', 'text/html'),
('Content-Length', str(len(html)))]
start_response(status, response_headers)
return [html]
# Check if uploadType is zip - display no file chosen error
if uploadType != "application/zip":
html = """
<html >
<body style='font-family:calibri' bgcolor='#EEE' onLoad="toggleExtractors('m21')">
<table border=0 width='100%'>
<tr><td align='center'>
<table border=0 width='500px' cellpadding='10px' style='background-color:#FFF'>
<tr><td align='left'>
<h1>Music 21 Feature Extraction:</h1>
<p><b>Error:</b> File not in .zip format</p>
<p><a href='/music21/featureapp/uploadForm'>Try Again</a></p>
</td></tr></table>
</td></tr></table>
</body></html>
"""
response_headers = [('Content-type', 'text/html'),
('Content-Length', str(len(html)))]
start_response(status, response_headers)
return [html]
# Setup Feature Extractors and Data Set
ds = features.DataSet(classLabel='Class')
featureIDList = list()
# Check if features have been selected. Else display error
try:
unused_featureFile = formFields['features']
except:
html = """
<html ><body>
<h1>Error:</h1>
<p>No extractors selected</p>
<p><a href='/music21/featureapp/uploadForm'>try again</a></p>
</body></html>
"""
return html
if common.isListLike(formFields['features']):
print(formFields['features'])
for featureId in formFields['features']:
featureIDList.append(str(featureId.value))
else:
featureIDList.append(formFields['features'].value)
fes = features.extractorsById(featureIDList)
ds.addFeatureExtractors(fes)
# Create ZipFile Object
zipf = zipfile.ZipFile(uploadedFile, 'r')
# Loop Through Files
for scoreFileInfo in zipf.infolist():
filePath = scoreFileInfo.filename
# Skip Directories
if (filePath.endswith('/')):
continue
scoreFile = zipf.open(filePath)
# Use Music21's converter to parse file
parsedFile = idAndParseFile(scoreFile, filePath)
# If valid music21 format, add to data set
if parsedFile is not None:
# Split into directory structure and filname
pathPartitioned = filePath.rpartition('/')
directory = pathPartitioned[0]
filename = pathPartitioned[2]
if directory == "":
directory = 'uncategorized'
ds.addData(parsedFile, classValue=directory, id=filename)
# Process data set
ds.process()
# Get output format from POST and set appropriate output:
outputFormatID = formFields['outputformat'].value
if outputFormatID == CSV_OUTPUT_ID:
output = features.OutputCSV(ds).getString()
elif outputFormatID == ORANGE_OUTPUT_ID:
output = features.OutputTabOrange(ds).getString()
elif outputFormatID == ARFF_OUTPUT_ID:
output = features.OutputARFF(ds).getString()
else:
output = "invalid output format"
response_headers = [('Content-type', 'text/plain'),
('Content-Length', str(len(output)))]
start_response(status, response_headers)
return [output]