music21.musicxml.lilypondTestSuite¶
The Lilypond MusicXML Test Suite comes from http://lilypond.org/doc/v2.18/input/regression/musicxml/collated-files
The test suite is licensed under the MIT license (https://opensource.org/licenses/mit-license.php) and copyrighted by the Lilypond project.
Currently this tests only if everything parses without error. It does not check to make sure that it actually works.
One change has been made, to 33g-Slur-ChordedNotes.xml which is contains a common incorrect notation but also a very difficult one that music21 can parse if the slur number is changed to “2” for the second incorrect slur since music21 parses all notes of a chord before moving to the next.