C++ library for parsing and weiring standard MIDI Files.

Features
* Event timestamps can be converted between absolute or delta tick values with
  the MidiFile::deltaTicks and MidiFile::absoluteTicks functions
* In absolute tick mode, messages can be inserted into tracks in any order and
  later sorted by timestamp with the MidiFile::sortTracks function
* Multi-track files can be converted to a single track in a reversible process
* Event performance times in seconds can be calculated from tick times and tempo
  meta messages with the MidiFile::doTimeAnalysis function
* Durations of notes can be extracted using the MidiFile::linkNotePairs function