private TrkDef GetNextFlutterSequence(TrkDef existingFlutter, double factor, int transposition)
{
TrkDef nextFlutter = existingFlutter.DeepClone();
nextFlutter.AdjustVelocities(factor);
nextFlutter.AdjustMsDurations(factor);
nextFlutter.AdjustRestMsDurations(factor);
nextFlutter.Transpose(transposition);
return(nextFlutter);
}