private static int GetUpCount(int lowNote)
{
var noteName = NoteHelper.NumberToNote(lowNote);
if (noteName == "B2" || noteName == "C3")
{
return(0);
}
return(35 - lowNote);
}
private void LoadTrainingData(List <Phrase> sourceRiffs = null)
{
if (sourceRiffs == null)
{
_riffs = Directory.GetFiles(_rootFolder, "*.mid", SearchOption.AllDirectories)
.Select(x => MidiHelper.ReadMidi(x).Phrases[0])
.ToList();
}
else
{
_riffs = sourceRiffs.ToList();
}
var largeRiffs = _riffs.Where(riff => riff.PhraseLength > _riffLength).ToList();
foreach (var largeRiff in largeRiffs)
{
PhraseHelper.TrimPhrase(largeRiff, _riffLength);
}
foreach (var halfSizeRiff in _riffs.Where(riff => riff.PhraseLength == _riffLength / 2M))
{
PhraseHelper.DuplicatePhrase(halfSizeRiff);
}
foreach (var quarterSizeRiff in _riffs.Where(riff => riff.PhraseLength == _riffLength / 4M))
{
PhraseHelper.DuplicatePhrase(quarterSizeRiff);
PhraseHelper.DuplicatePhrase(quarterSizeRiff);
}
foreach (var wrongSizeRiff in _riffs.Where(riff => riff.PhraseLength != _riffLength))
{
Console.WriteLine("Riff " + wrongSizeRiff.Description + " is not " + _riffLength + " steps long - it's " + wrongSizeRiff.PhraseLength);
}
_riffs = _riffs.Where(riff => riff.PhraseLength == _riffLength).ToList();
var wrongScaleRiffs = new List <Phrase>();
foreach (var scaleRiff in _riffs)
{
var matchingScales = ScaleHelper.FindMatchingScales(scaleRiff).Where(x => x.DistanceFromScale == 0).Select(x => x.Scale.Name).ToList();
if (!matchingScales.Contains(_baseScale))
{
Console.WriteLine("Riff " + scaleRiff.Description + " DOES NOT contain base scale - is possibly " + (matchingScales.FirstOrDefault() ?? "??"));
wrongScaleRiffs.Add(scaleRiff);
}
}
_riffs = _riffs.Except(wrongScaleRiffs).ToList();
var wrongOctaveRiffs = new List <Phrase>();
var lowestNote = NoteHelper.NoteToNumber("C2");
var highestNote = NoteHelper.NoteToNumber("C4");
foreach (var octaveRiff in _riffs)
{
var lowNote = octaveRiff.Elements.Min(x => x.Note);
var highNote = octaveRiff.Elements.Max(x => x.Note);
if (lowNote >= NoteHelper.NoteToNumber("C3") && lowNote < NoteHelper.NoteToNumber("C4"))
{
NoteHelper.ShiftNotesDirect(octaveRiff, 1, Interval.Octave, Direction.Down);
lowNote = octaveRiff.Elements.Min(x => x.Note);
highNote = octaveRiff.Elements.Max(x => x.Note);
}
if (lowNote >= NoteHelper.NoteToNumber("C1") && lowNote < NoteHelper.NoteToNumber("C2"))
{
NoteHelper.ShiftNotesDirect(octaveRiff, 1, Interval.Octave, Direction.Up);
lowNote = octaveRiff.Elements.Min(x => x.Note);
highNote = octaveRiff.Elements.Max(x => x.Note);
}
if (lowNote < lowestNote || highNote > highestNote)
{
Console.WriteLine("Riff "
+ octaveRiff.Description
+ " (" + NoteHelper.NumberToNote(lowNote)
+ "-" + NoteHelper.NumberToNote(highNote)
+ ") is outside the correct note range ("
+ NoteHelper.NumberToNote(lowestNote)
+ "-" + NoteHelper.NumberToNote(highestNote)
+ ").");
wrongOctaveRiffs.Add(octaveRiff);
}
}
_riffs = _riffs.Except(wrongOctaveRiffs).ToList();
}