private void AlterOctave(string value)
{
var name = Regex.Replace(value, @"[\d',.]", string.Empty)[0];
switch (_previous.Name)
{
case Names.C when name == 'g' || name == 'a' || name == 'b':
case Names.D when name == 'a' || name == 'b':
case Names.E when name == 'b':
_relativeOctave--;
break;
case Names.G when name == 'c':
case Names.A when name == 'c' || name == 'd':
case Names.B when name == 'c' || name == 'd' || name == 'e':
_relativeOctave++;
break;
}
var higher = value.ToCharArray().Count(a => a == '\'');
if (higher > 0)
{
_relativeOctave += higher;
}
var lower = value.ToCharArray().Count(c => c == ',');
if (lower > 0)
{
_relativeOctave -= lower;
}
}
public TokenScoreBuilder()
{
_lastTimeSignature = new TimeSignature {
Beat = Durations.Quarter, Ticks = 4
};
_currentGroup = new SymbolGroup();
_currentGroup.Meter = _lastTimeSignature;
_score = new Score {
SymbolGroups = { _currentGroup }
};
_relativeOctave = Octaves.Three;
_previous = new Common.Models.Note(Names.C, _relativeOctave);
}