public MetaEventAffecterTempo(MetaEventTempo aTempo)
     : base(aTempo)
 {
 }
        public override void Execute(MetaStatus aMetaStatus)
        {
            MetaEventTempo lTempoEvent = ( MetaEventTempo )metaEvent;

            aMetaStatus.SetTempo(lTempoEvent.GetTempo());
        }