At Chicago Union Station, magical piano comes to life

Chicago Union Station welcomed travellers with a little holiday magic recently.

A lone piano magically came to life — courtesy of Rob Bliss Creative and Amtrak — adding a soundtrack to the ordinary hustle and bustle of people on the go.

In the video "Chicago's Magical Piano," the instrument enhances a child's sweet version of "Chopsticks," musically narrates a stress-out business man's phone call, and gives one man a great tune to dance to.

Watch the magic below.

Even magic pianos need a little help from their talented friends. It should be noted that pianist Andrew Blendermann played each tune from a nearby control room.

"Best bits so far: a lady sat down and played an impromptu blues, a big guy had his steps underscored (down to the tiniest finger-wiggle), and an old man in an engineer's cap happened to have a harmonica in his pocket, and whipped it out to play "Over The Rainbow," Blendermann wrote on Facebook earlier this month.

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Rob Bliss explained how to all worked to Yahoo News:

"We had cameras and microphones set up near the piano that feeded back to this secret room where we had speakers and television monitors set up so we could see and hear everything that happened. Also, our pianist had a keyboard that could remotely control the piano at the same time."

He added that while some people might have known they were being recorded — he put out a call for people to interact with the magical instrument — he believed most didn't know about the hidden cameras around them.

"We wanted to encourage as much participation as possible, so we tried to publicize the event in advance but didn't give people specific instruction of what to do, just to come see it and interact, and we'll just record it all," he said.