It isn't just pilots who burn pianos.
"The Chalet Club" (NAAFI) at Changi was a three story building with the Sports Store occupying the ground floor. The Pig's Bar (Fans) and Smoothies Bar (Air-Con) were located on the top floor. The staircase ran straight across the front of the building, meaning you could see all the way up as you ascended. There was a landing on the second floor, half way up. Ascending the stairs one pay night, I was half way up the first flight when a blazing piano appeared at the top landing, courtesy of 205 Sqn Male Voice Choir, and began the descent. I ran up the rest of the first flight and just made it into the safety of the second floor doorway as the blazing piano passed by on its journey to the sports store.
Two months later a new piano was installed in the Pig's Bar, safely ensconced in a protective cage with two holes provided for the driver to put his arms through, and a cut out below for access to the accelerator and brake pedals. (Some wag later used the holes to paint it pink.)