public Chord(Intonation root, ChordComplexity complexity, IEnumerable <Interval> intervals)
{
Root = root;
_intervals = intervals.ToList();
var octave = root.GetChromaticOctave().ToList();
switch (complexity)
{
case ChordComplexity.Triad:
Intonations = new List <Intonation>
{
root,
octave[_intervals.GetChromaticIndex(Degree.III)],
octave[_intervals.GetChromaticIndex(Degree.V)]
};
Type = GetTriadType();
break;
case ChordComplexity.Seventh:
Intonations = new List <Intonation>
{
root,
octave[_intervals.GetChromaticIndex(Degree.III)],
octave[_intervals.GetChromaticIndex(Degree.V)],
octave[_intervals.GetChromaticIndex(Degree.VII)]
};
Type = GetSeventhType();
break;
}
}
public static IEnumerable <Intonation> GetIntonations(this IEnumerable <Interval> intervals, Intonation root)
{
var octave = root.GetChromaticOctave().ToList();
var results = new List <Intonation>();
results.Add(root);
var index = 0;
foreach (var interval in intervals)
{
index += (int)interval;
if (index >= octave.Count)
{
continue;
}
results.Add(octave[index]);
}
return(results);
}
public static Intonation GetIntonation(this IEnumerable <Interval> intervals, Intonation root, Degree degree) => root.GetChromaticOctave().ElementAt(intervals.GetChromaticIndex(degree));