Artist(s)
Jule Styne en Sammy Cahn
Style
Christmas
Level
Explanation
In this song, there is always a flat (♭) for the B. That means that you should not play the B, but the black key to the left of it, the B♭. For more information, see this page (and the next one). In the first line, it is easier for many children to play the B♭ with a middle finger. You do have to 'change' twice at the end of the line.
You can also play the G in the second line with your little finger. See what you like best. You'll find that you can play very quickly with the fingering in the last line.