protected void AddBeatGlyph(BeatContainerGlyph g)
{
g.Renderer = this;
g.PreNotes.Renderer = this;
g.OnNotes.Renderer = this;
g.OnNotes.BeamingHelper = Helpers.BeamHelperLookup[g.Beat.Voice.Index][g.Beat.Index];
GetOrCreateVoiceContainer(g.Beat.Voice).AddGlyph(g);
}