Help on package music21:

NAME
    music21 - The music21 Framework is Copyright © 2006-2022 Michael Scott Asato Cuthbert.

DESCRIPTION
    Some Rights Reserved
    Released under the BSD (3-clause) license.  See license.txt.
    
    See license.txt file for the full license which represents your legal
    obligations in using, modifying, or distributing music21.
    
    Roughly speaking, this means that anyone can use this software for
    free, they can distribute it to anyone, so long as this acknowledgment
    of copyright and ownership remain publicly accessible.  You may also
    modify this software or use it in your own programs so long as you do
    so long as you make your product available
    under the same license.  You may also link to this code as a library
    from your sold, proprietary commercial product so long as this code
    remains open and accessible, this license is made accessible,
    and the developers are credited.
    
    The development of music21 was supported by grants
    from the Seaver Institute and the NEH/Digging into Data Challenge,
    with the support of the MIT
    Music and Theater Arts section and the School of Humanities, Arts,
    and Social Sciences.  Portions of music21 were originally part of
    the PMusic (Perl) library, developed by Cuthbert prior to arriving at MIT.
    
    music21 outputs a subset of XML data defined by the MusicXML 4.0
    standard, Copyright © 2004-2022 the Contributors to the MusicXML Specification.
    
    The corpus files have copyrights retained by their
    owners who have allowed them to be included with music21.

PACKAGE CONTENTS
    _version
    abcFormat (package)
    alpha (package)
    analysis (package)
    articulations
    audioSearch (package)
    bar
    base
    beam
    braille (package)
    capella (package)
    chord (package)
    clef
    common (package)
    configure
    converter (package)
    corpus (package)
    defaults
    derivation
    duration
    dynamics
    editorial
    environment
    exceptions21
    expressions
    features (package)
    figuredBass (package)
    freezeThaw
    graph (package)
    harmony
    humdrum (package)
    instrument
    interval
    ipython21 (package)
    key
    languageExcerpts (package)
    layout
    lily (package)
    mei (package)
    metadata (package)
    meter (package)
    midi (package)
    musedata (package)
    musicxml (package)
    note
    noteworthy (package)
    omr (package)
    percussion
    pitch
    prebase
    repeat
    roman
    romanText (package)
    scale (package)
    search (package)
    serial
    sieve
    sites
    sorting
    spanner
    stream (package)
    style
    tablature
    tempo
    test (package)
    text
    tie
    tinyNotation
    tree (package)
    variant
    vexflow (package)
    voiceLeading
    volpiano
    volume

FUNCTIONS
    mainTest(*testClasses, **keywords)
        Takes as its arguments modules (or a string 'noDocTest' or 'verbose')
        and runs all of these modules through a unittest suite
        
        Unless 'noDocTest' is passed as a module, a docTest
        is also performed on `__main__`, hence the name "mainTest".
        
        If 'moduleRelative' (a string) is passed as a module, then
        global variables are preserved.
        
        Run example (put at end of your modules):
        
        ::
        
            import unittest
            class Test(unittest.TestCase):
                def testHello(self):
                    hello = 'Hello'
                    self.assertEqual('Hello', hello)
        
            import music21
            if __name__ == '__main__':
                music21.mainTest(Test)
        
        
        This module tries to fix up some differences between python2 and python3 so
        that the same doctests can work.  These differences can now be removed, but
        I cannot remember what they are!

DATA
    __all__ = ['mainTest', 'prebase', 'base', 'sites', 'abcFormat', 'alpha...

VERSION
    8.3.0

FILE
    c:\users\christian\appdata\local\packages\pythonsoftwarefoundation.python.3.9_qbz5n2kfra8p0\localcache\local-packages\python39\site-packages\music21\__init__.py