All notable changes to this project will be documented in this file. On 2020-05-31, two tags were deleted from origin, v1.0.0 and v1.0.1 and replaced with v0.4.0 and v0.4.1 respectively. If you cloned/forked the repository before 2020-05-31, you should delete v1.0.0 and v1.0.1 and pull tags.

• Add support for setting an instrument's transposition at the start of the score. #116

• Change the default-constructed value of DynamicsEnum to mf instead of otherDynamics. #106/8a5cd6b
• Change the spelling of KindValue enums from, e.g. dominant11Th to dominant11th. #105
• Break up Strings.h into multiple .h files, one for each type #107. (Related to codegen, #58).
• Rewrite Integers.h and Integers.cpp. Changed NonNegativeInteger to default to 0, and changed the tests that had locked-in that behavior. #109. (Related to codegen, #58).
• Rewrite Decimals.h and Decimals.cpp. #111. (Related to codegen, #58).
• Rewrite Enums, Integers and Decimals. Add try parse and return bool from parse methods. #112. (Related to codegen, #58).
• Rewrite union types FontSize and YesNoNumber. Also reformat a bunch of documentation. #113. (Related to codegen, #58).

• Fix xcode build, new headers were missing from frameworks.

• Add support for new-page attributes and page layout #94
• The LayoutData layout field of ScoreData has been renamed to DefaultsData defaults #94
  • What used to be the LayoutData class has been renamed to DefaultsData.
  • This name change freed up the name LayoutsData to be used for a new class that better fits the name.
• The std::set<SystemData> systems field of ScoreData has been replaced by std::map<MeasureIndex, LayoutData>. #94
  • LayoutData is a new class (not to be confused with DefaultsData which previously held the name).
  • LayoutData holds a SystemData and a PageData (new) to specify system and page layout.
• Some recurring data patterns were factored out into new classes. #94
  • The existing classes affected by these changes are:
    • DefaultsData (which used to be called LayoutData).
    • SystemData
  • The new classes are:
    • LeftRight
    • MarginsData
    • PageLayoutData
    • PageMarginsData
    • SizeData
    • SystemLayoutData

• Bump C++ standard to 17 #93
• Support non-traditional key signatures in mx::api. #81
• Add a constructor for PitchData. #90
• Provide a hint in the exception message when a zip file is attempted. #67
• Update the readme fairly substantially. #91
• Add a changelog. #97
• Hide the independence of the XML parser to reduce confusion about dependency management. #79
• The introduction of std::optional as a pattern for specifying optional data. #94

• Mostly internal changes related to the xml parser.

• A simplified data model, called mx::api.

• MusicXML files can be parsed into the C++ classes.

• MusicXML 3.0 represented in C++ classes, mostly generated from XSD using custom Ruby scripts.
• MusicXML DOM classes can serialize to XML.

• Initial Commit

Historical Note: April 7, 2019 Trying to button up a '1.0' 'release' by tying up some of the loose ends with the build, continuous integration, testing, and header leakage. The use of the semver 1.0 implies that we hope there won't be many breaking changes. I suppose the way I will use semver is as follows: a patch release may cause slight compilation annoyances, but nothing that would cause any rewriting of code. A minor release may similarly require some tweaks but hopefully nothing too major. A major release could be anything up-to a complete re-write.

Historical Note: October 6, 2016: Significant progress has been made on the api namespace, which is a simplified set of data structures to represent a MusicXML document. These are being implemented as mostly-POD structs. Currently the importing of data into these structures is well-underway, but the exporting from these data structures has not been implemented.

Historical Note: August 16, 2016: All tests are passing (core, xml and import). The remaining items to do on the ximport feature are

• search for all \\TODO's and fix those that can be fixed
• Standardize the code file copyrights and bump to version 0.2
• Rename XElement functions to better names
• Update the readme including information about the XDoc XElement classes and how to implement those interfaces.

Historical Note: August 11, 2016: The feature to import MusicXML files is essentially complete with most "round-trip" integration tests passing.

Historical Note: June 27, 2016: An "integration" tester has been added to the MxTest executable. This exists in ImportTest.cpp, and ImportTestImpl.h/cpp. A top level directory "Resources" has been added to hold test input (i.e. "golden") files. The input files are gathered from Recordare, Lilypond and MuseScore and to this I have added a few of my own scores as exported by Finale Dolet.

Each of these test input files has been "scrubbed" using the XDoc classes (i.e. it has been round-tripped through pugixml and has been updated to a normalized MusicXML 3.0 header format. The resultant scrubbed files are in Resources/expected. During the test run, a csv file is written in Resources/testOutput recording a row for each test (Pass/Fail, duration of test, messages, etc). Each time a test failure is encountered the expected file and the error file will be saved to the Resources/testOutput directory to allow for visual inspection.

Currently this tester is a "wire-up". All 263 of these round-trip import/export tests fail because the implementation does not yet exist in mx::core. The next body of work will be the mx::core implementation.

Historical Note: June 20, 2016: A simple interface to for XML DOM has been added in the ::ezxml:: namespace. The key classes (pure virtual) are XDoc, XElement, XAttribute, XElementIterator, XAttributeIterator. These are implemented by concrete classes PugiDoc, PugiElement, etc. which serve as a wrapper for the pugixml library (http://pugixml.org/). Although this is a static library, a class XFactory can be used to create a Pugi instance of the XDoc interface.

The idea behind using a pure virtual interface is that the client of the Music XML Class Library can, in theory choose a different XML DOM library (Xerces, TinyXML, etc) and wrap with instances of the XDoc interfaces and the Music XML core classes will not know the difference.

Historical Note: June 20, 2016: The GitHub repo was bloated and has been entirely wiped-out and restarted.