My first encounter with the song was through a big Oldies songbook with number tabs. The reason I loved it back then was because it was easy to play with very few notes. The first time I heard an artist singing the song was likely to be the version by Andy Williams - which I heard from a cassette recording. It was much later before I learned of the origins of the song.
As for this kalimba version, I think it is fairly easy to play - just like the song itself, simple and enchanting.
Video record:
Number tabs:
Standard notation: