public TimeSignature(string input)
{
var parts = input.Split("/");
if (int.TryParse(parts[0], out var top) &&
int.TryParse(parts[1], out var bottom))
{
Top = top;
Bottom = bottom;
if (Top % 3 == 0 && (Bottom > 4 || Top > 3))
{
MeterType = MeterType.Compound;
Beats = Top / 3;
var subBeat = Durations.All().FirstOrDefault(d => d.TimeSymbol == bottom && d.Dots == 0);
BeatDuration = Durations.All().FirstOrDefault(d => d.CommonTimeBeatLength == (subBeat.CommonTimeBeatLength * 3));
}
else if (Top % 2 == 1)
{
MeterType = MeterType.Mixed;
Beats = ((Top % 3) / 2) + (Top / 3);
BeatDuration = null;
}
else
{
MeterType = MeterType.Simple;
Beats = Top;
BeatDuration = Durations.All().FirstOrDefault(d => d.TimeSymbol == bottom && d.Dots == 0);
}
}
else
{
throw new UnrecognizedTimeSignatureException();
}
}
public TimeSignature(int top, int bottom)
{
try
{
Top = top;
Bottom = bottom;
if (Top % 3 == 0 && (Bottom > 4 || Top > 3))
{
MeterType = MeterType.Compound;
Beats = Top / 3;
var subBeat = Durations.All().FirstOrDefault(d => d.TimeSymbol == bottom && d.Dots == 0);
BeatDuration = Durations.All().FirstOrDefault(d => d.CommonTimeBeatLength == (subBeat.CommonTimeBeatLength * 3));
}
else if (Top % 2 == 1)
{
MeterType = MeterType.Mixed;
Beats = ((Top % 3) / 2) + (Top / 3);
BeatDuration = null;
}
else
{
MeterType = MeterType.Simple;
Beats = Top;
BeatDuration = Durations.All().FirstOrDefault(d => d.TimeSymbol == bottom && d.Dots == 0);
}
}
catch
{
throw new UnknownTimeSignatureException();
}
}
