private void beginGenerationButton_Click(object sender, EventArgs e)
{
try
{
var retriever = new PianoNoteRetriever();
var midiEvents = new InstrumentMidiEventProducer(this.files.Select(x => new Sequence(x)));
IReadOnlyList <MidiEvent> midi = midiEvents.GetOrderedMessages(GeneralMidiInstrument.AcousticGrandPiano);
Chord.AllowForComplexSimplification = this.checkBox1.Checked;
var accords = Chord.RetrieveChords(midi, retriever);
INGrams <Chord> grams = null;
if (this.homogeneous)
{
grams = HomogenousNGrams <Chord> .BuildNGrams((int)this.leftRangeNumericUpDown.Value, accords);
}
else
{
grams = HeterogenousNGrams <Chord> .BuildNGrams((int)this.leftRangeNumericUpDown.Value, (int)this.rightRangeNumericUpDown.Value, accords);
}
NGramGraphMarkovChain <Chord> graph = new NGramGraphMarkovChain <Chord>(grams);
this.Save(graph);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public DiscreteDataRetriever(List <Chord> chordsInOrder, int clusterSize = 2, int windowSize = 20)
{
chordsInOrder.NullCheck();
chordsInOrder.Any().AssertTrue();
this.Chords = chordsInOrder.AsReadOnly();
this.WindowSize = windowSize;
this.NGramSize = clusterSize;
this.HomogenousWindowingData = HomogenousNGrams <Chord> .BuildNGrams(this.NGramSize, this.Chords.ToList());
this.badOkayGoodChords = Tuple.Create <List <NGram <Chord>[]>, List <NGram <Chord>[]>, List <NGram <Chord>[]> >(this.RetrieveBad(), this.RetrieveOkay(), this.RetrieveGood());
}
private List <NGram <Chord>[]> RetrieveGood()
{
var window = HomogenousNGrams <NGram <Chord> > .BuildNGrams(this.WindowSize, this.HomogenousWindowingData.ToList());
return(window.Select(x => x.ToArray()).ToList());
}
