public Note(int scaleDegree, int octave, MidiOctaveFormat format)
{
if (octave < -2)
{
throw new OctaveValueException(octave);
}
int octaveModifier = format == MidiOctaveFormat.Standard ? 2 : 1;
this.value = PitchScaler.Scale(scaleDegree) + (Interval.Octave.Semitones * (octaveModifier + octave));
this.Duration = 1;
}
public static Note FromName(string note, MidiOctaveFormat format)
{
const int MinimumTextLength = 2;
if (String.IsNullOrEmpty(note) || note.Length < MinimumTextLength)
{
throw new NoteFormatException("Note text is too short");
}
if (!Char.IsLetter(note.First()))
{
throw new NoteFormatException("Note must start with a letter");
}
Accidental accidental = Accidental.FromString(note.Substring(1, 1));
int NamePartLength = 1;
if (accidental != null)
{
NamePartLength = 2;
}
string scaleDegreeText = note.Substring(0, NamePartLength).ToUpper();
int scaleDegree = 0;
try
{
scaleDegree = NoteValues[scaleDegreeText];
}
catch (KeyNotFoundException e)
{
throw new NoteFormatException(scaleDegreeText, e);
}
string octaveText = note.Substring(NamePartLength);
int octaveValue = Convert.ToInt32(octaveText, CultureInfo.CurrentCulture);
return(new Note(scaleDegree, octaveValue, format));
}
/// <summary>
/// Calculates which octave a value belongs to.
/// </summary>
/// <param name="value"></param>
/// <param name="format"></param>
/// <returns></returns>
public static int OctaveOf(int value, MidiOctaveFormat format)
{
int octaveModifier = format == MidiOctaveFormat.Standard ? 2 : 1;
return((value / 12) - octaveModifier);
}
