/// <summary>
/// Initializes a new instance of the <see cref="Key"/> class.
/// </summary>
/// <param name="name">The key's name. This is the name of the base note, optionally with an 'm' appended for minor keys.</param>
public Key(string name)
{
string rest;
int pos;
Note = Note.Parse(name, out rest, out pos);
if (Note == null)
{
throw new ArgumentException("Invalid key name " + name);
}
if ((rest.StartsWith("m") && !rest.StartsWith("maj")) || rest.ToLower().Contains("moll"))
{
IsMinor = true;
}
}
/// <summary>
/// Gets all notes in the chord name.
/// </summary>
/// <example>
/// When the name is 'D/F#' this returns 'D' and 'F#'.
/// </example>
/// <returns>All notes in the chord name.</returns>
public IEnumerable <NoteSymbol> GetNotes()
{
string str = Name;
string rest;
Note n;
int relativePosition;
int absolutePosition = 0;
while ((n = Note.Parse(str, out rest, out relativePosition)) != null)
{
int relativeEnd = str.Length - rest.Length;
yield return(new NoteSymbol(n, absolutePosition + relativePosition, str.Substring(relativePosition, relativeEnd - relativePosition)));
absolutePosition += relativeEnd;
str = rest;
}
}
