An Orchestra Instrument

Today is another busy day. I got up at 5:30am for morning excercise, then at 10:00am for kids violin class, the Amy's friend's birthday party and Amy's Chinese class. After Chinese class, I took Amy to a playground and Sarah for badminton.
I talked a lot today in different situations. It is much eaiser to talk to people after changing my altitude. The current project of self-improvment and self-revelation really works well.
The most interested thing today is the museum visiting after I sent Amy to her school. The museum is very close to my home, however, I did not visit the museum yet. Today is the first time I visited there because today is free to public. When I went inside the museum, I joined a guided tour at first and listened  the curator to describe paitings. I do not have much talent to appreicate the paintings, however, I followed the tour until its end.
After I saw the paintings, I went for visting the carriage and car exibitions. There are many carriages used in late 1800s and cars in early 1900s. They are very interesting.
The most interesting thing I saw in the museum is an orchestra instruments. It works like a player piano, using a roll of coded paper to work. The instrument has integrated 14 different instruments. It is all mechanical originally, currently, there are electrical pumps are used for supply and evacuate air for some copper pipe instruments. I was told that only five of such instruments with such size are left. After the demonstration, I talked with the lady who were taking charge of this demonstration. She invited me to come back in the Chrystmas time for another demonstration.