Regarding people talking during one's proud demonstration of mechanical
(or live) music -- the percentage of people who are 'musical' (who sense
the real beauty of music) is quite small, I would guess maybe 2%.  Today,
music is used sort of like syrup on pancakes or ketchup on everything
else; just a condiment.  It's meaningless to most people.

We have some friends who love ballroom dancing, but have tin ears and
don't know one song from another.  They sense only the rhythm and some
sort of primitive melody, but can't name any of the songs they've heard a
thousand times.  They consider themselves to be 'music lovers', but will
be the first to talk when the music starts.  So, music is different for
different folks.  Enjoy any aspect of it you can -- it's rich enough to
be something to everyone.

Dave McMaster