public static Model Parse(string filename, bool computeNoteLenghts = true, bool computePitchBends = true,
bool computeRealVolumes = true, bool determineInstruments = false, bool normalizeMetre = false,
bool prolongSustainedNotes = false, bool showBeats = false, bool analyzeKeys = false,
bool analyzeChords = false, bool playChords = false, bool discretizeBends = false, Tone?transposeTo = null)
{
if (playChords)
{
analyzeChords = true;
}
if (analyzeChords)
{
analyzeKeys = true;
}
if (discretizeBends)
{
computePitchBends = true;
}
if (transposeTo != null)
{
analyzeKeys = true;
}
var midi = new Model();
using (var reader = new MidiBigEndianReader(File.Open(filename, FileMode.Open)))
{
ParseHeaderChunk(reader, midi);
foreach (var track in midi.Tracks)
{
ParseTrackChunk(reader, track);
}
if (computeNoteLenghts || normalizeMetre || showBeats)
{
TimeCalculator.ComputeRealTimes(midi);
TimeCalculator.CreateNoteLengths(midi);
}
midi.Length = midi.EventsOfType <EndOfTrack>().Max(e => e.AbsoluteRealTime);
if (computeRealVolumes || normalizeMetre || showBeats)
{
var collector = new VolumeChangeCollector(midi);
collector.DetermineVolumes();
}
if (prolongSustainedNotes || normalizeMetre || showBeats)
{
var sustainer = new Sustainer(midi);
sustainer.ProlongSustainedNotes();
}
if (normalizeMetre)
{
Normalizer.CalculateMetre(midi);
Normalizer.Normalize(midi, prolongSustainedNotes);
}
else if (showBeats)
{
Normalizer.CalculateMetre(midi);
Normalizer.AddBeats(midi, prolongSustainedNotes);
}
if (computePitchBends)
{
PitchBendCalculator.JoinPitchBends(midi);
PitchBendCalculator.DeterminePitchRanges(midi);
if (discretizeBends)
{
PitchBendCalculator.DiscretizeBends(midi);
}
}
if (determineInstruments)
{
var collector = new InstrumentChangeCollector(midi);
collector.DetermineInstruments();
}
if (analyzeKeys)
{
if (!normalizeMetre && !showBeats)
{
Normalizer.CalculateMetre(midi);
}
if (midi.EventsOfType <KeySignature>().Any(k => k.Key.Tone != Tone.C || k.Key.Scale != Scale.Major))
{
midi.Key = midi.EventsOfType <KeySignature>().First().Key;
midi.IsKeyFoundByMidiItself = true;
}
else
{
MLKeyFinder.DetectKey(midi);
midi.IsKeyFoundByMidiItself = false;
}
}
if (analyzeChords)
{
var analyzer = new ChordAnalyzer(midi);
analyzer.Analyze();
if (playChords)
{
analyzer.AddChordNotesToModel();
}
}
if (transposeTo != null)
{
Transposer.Transpose(midi, (Tone)transposeTo);
}
ChannelPlayabilityChecker.Check(midi);
}
return(midi);
}
