public Note(string noteName)
{
var letterGroups = Regex.Match(noteName, @"([^0-9]+)").Captures;
var numbers = Regex.Match(noteName, @"([0-9])").Captures;
if (letterGroups.Count != 1 || numbers.Count > 1)
{
throw new InvalidOperationException(string.Format("Note name '{0}' is invalid. " +
"The name should contain a tone name and a single digit. E.g.: A, C4, F#3, Db 8", noteName));
}
this.Tone = new Tone(letterGroups[0].Value);
if (numbers.Count == 0)
{
this.Octave = new Octave(4);
}
else
{
this.Octave = new Octave(int.Parse(numbers[0].Value));
}
}
public Note()
{
this.Tone = new Tone();
this.Octave = new Octave();
}
