static void Test8()
{
MusicPlayer player = new MusicPlayer();
Console.WriteLine("Hidden Markov Model");
var m1 = GetMelodySequence(@"test\other\frere.mid");
var m2 = GetMelodySequence(@"test\other\babaa.mid");
var m3 = GetMelodySequence(@"test\other\twinkle.mid");
var m4 = GetMelodySequence(@"test\hagrid.mid");
var m5 = GetMelodySequence(@"test\harry.mid");
var m6 = GetMelodySequence(@"test\harry2.mid");
MarkovGenerator markov = new MarkovGenerator(new MelodySequence[] { m6 });
while (true)
{
Composition comp = new Composition();
GeneticGenerator gen = new GeneticGenerator(new MetricSimilarity(m6, new IMetric[] { new Rhythm(), new RhythmicBigram(), new RhythmicInterval() }));
var notes2 = gen.Generate();
Track t2 = new Track((PatchNames)0, 10);
MelodySequence s = new MelodySequence();
s.AddPause((int)Durations.wn * 10);
foreach (Note n in notes2.Notes)
{
if (n.Pitch <= 0)
n.Pitch = 0;
else if (n.Pitch > 48)
n.Pitch = 40;
else if (n.Pitch > 70)
n.Pitch = 35;
else
{
n.Pitch = 49;
n.Duration *= 4;
n.Velocity = 50;
s.AddPause(n.Duration * 2);
}
s.AddNote(n);
}
t2.AddSequence(s);
var notes3 = markov.Generate().Notes as Note[];
MelodySequence baseseq = new MelodySequence();
int max_dur = 0;
int max_index = 0;
for (int i = (int)(notes3.Length * 0.7f); i < notes3.Length; i++)
{
if (notes3[i].Duration > max_dur)
{
max_dur = notes3[i].Duration;
max_index = i;
}
}
Note last_note = null;
for (int i = 0; i < max_index; i++)
{
last_note = notes3[i];
baseseq.AddNote(last_note);
}
baseseq.AddNote(new Note(last_note.Pitch - 12, last_note.Duration));
baseseq.AddNote(new Note(last_note.Pitch - 24, last_note.Duration * 2));
baseseq.AddPause(last_note.Duration * 32);
Track t = new Track(PatchNames.Vibraphone, 1);
var b1 = baseseq.Clone() as MelodySequence;
var b2 = baseseq.Clone() as MelodySequence;
var b3 = baseseq.Clone() as MelodySequence;
b1.Transpose(12);
b2.Transpose(6);
b3.Transpose(-12);
t.AddSequence(baseseq);
t.AddSequence(b1);
t.AddSequence(b2);
t.AddSequence(b3);
comp.Add(t);
comp.Add(t2);
Console.WriteLine("Press enter key to listen");
Console.ReadLine();
player.Play(comp);
}
}
/// <summary>
/// Creates a new Melody Sequence for each n notes
/// </summary>
/// <param name="n">Period of notes</param>
/// <returns></returns>
public MelodySequence[] Split(int n)
{
List<MelodySequence> sequences = new List<MelodySequence>();
for(int i = 0; i < sequence.Count - n; i+=n)
{
MelodySequence seq = new MelodySequence();
for(int j = 0; j < n; j++)
{
seq.AddNote(this.sequence[i + j]);
}
sequences.Add(seq);
}
return sequences.ToArray();
}
MelodySequence NormalizeSequence(MelodySequence seq)
{
MelodySequence normalized = new MelodySequence();
foreach(var note in seq)
{
Note copy = note.Clone() as Note;
copy.StandardizeDuration();
//copy.Octave = 6;
normalized.AddNote(copy);
}
return normalized;
}
public object Clone()
{
MelodySequence seq = new MelodySequence();
foreach (Note n in sequence)
seq.AddNote(n.Clone() as Note);
return seq;
}
