AlphaTab.Model.Voice.Chain C# (CSharp) Метод

        private void Chain(Beat beat)
        {
            if (Bar == null) return;
            if (Bar.Index == 0 && beat.Index == 0)
            {
                // very first beat
                beat.PreviousBeat = null;
            }
            else if (beat.Index == 0)
            {
                // first beat of bar
                var previousVoice = Bar.PreviousBar.Voices[Index];
                beat.PreviousBeat = previousVoice.Beats[previousVoice.Beats.Count - 1];
                beat.PreviousBeat.NextBeat = beat;
            }
            else
            {
                // other beats of bar
                beat.PreviousBeat = Beats[beat.Index - 1];
                beat.PreviousBeat.NextBeat = beat;
            }
        }