/// <summary>
/// Returns the corresponding Interval
/// </summary>
public Interval ToQuality(AccidentalKind accidentalKind)
{
var result =
accidentalKind == AccidentalKind.Flat
? Interval.GetFlat(this)
: Interval.GetSharp(this);
return(result);
}
private static IntervalsList FromSemitones(
IEnumerable <Semitone> absoluteSemitones,
AccidentalKind accidentalKind)
{
var qualities = accidentalKind == AccidentalKind.Flat
? absoluteSemitones.Select(Interval.GetFlat)
: absoluteSemitones.Select(Interval.GetSharp);
var result = new IntervalsList(qualities);
return(result);
}
// ReSharper restore InconsistentNaming
#endregion
/// <summary>
/// Index qualities by distance for the given accidental kind (Flat or sharp).
/// </summary>
/// <param name="accidentalKind">The <see cref="AccidentalKind"/>.</param>
/// <returns></returns>
private static IDictionary <int, Interval> Index(AccidentalKind accidentalKind)
{
var qualities = All.Where(quality => quality.Accidental == null ||
quality.Accidental.AccidentalKind == accidentalKind &&
quality.Accidental.AbsoluteDistance <= 1)
.OrderBy(quality => quality)
.ThenBy(quality => quality.Accidental.AbsoluteDistance)
.ToList();
var result = new Dictionary <int, Interval>();
var groups = qualities.GroupBy(quality => quality.Distance);
foreach (var group in groups)
{
var elements = group.OrderByDescending(quality => quality.Accidental == null).ToList();
result[group.Key] = elements.FirstOrDefault();
}
return(result);
}
public IntervalsList(
IEnumerable <Semitone> absoluteSemitones,
AccidentalKind accidentalKind) : this(FromSemitones(absoluteSemitones, accidentalKind))
{
}