Musical joke on a gravestone

You hold it until the conductor tells you to stop. It appears the conductor is also dead.

*People stand there with instruments for all eternity*

I'd hate for sheet music to die ;-;

If it became a dead language, it would be incredibly hard to learn about music (especially from not well known artists) from the past.

I think it would be like heiroglyphics. Some people know it off by heart, some people haven't even heard of it before. Understand?