I kinda doubt that it's in the public domain in the U.S. It used to be that songs went into the public domain 70 years after publication, so we got a new batch of songs every year - until we hit the songs published in 1923. That's when the Sony Bono Copyright Extension Act of 1998 went into effect. I forgot how long that act extended copyrights, but I do recall that it meant that we wouldn't get any songs added to the public domain during my foreseeable lifetime.
Note that I added leeneia's MIDI above. Nice arrangement, leeneia.

-Joe-