January 1, 1953: Shaking it dislodges the notes

Just a playful strip. The notes spelling words, of course, is a variation of the Christmas Day strip just a week before.

October 25, 1952: Taking notes at Bridge

To get this joke, you must know that remembering what cards have already been played is an essential skill for playing Bridge well. Any serious Bridge player would know taking notes like this is not allowed.

If you know nothing about the game, you would not believe the levels of anal-retentiveness involved in high-level Bridge. There are elaborate systems of bidding designed to communicate to your partner information about your hand, but there are also rules regarding this, that if you use such a system the other team must be aware of it. I don't really understand it entirely myself.

September 3, 1951: Music notation

This is the first strip in which Schulz draws complex music notation, which he said in Peanuts: A Golden Celebration he found challenging yet satisfying to draw. Schroeder's still playing the generic baby, so the two haven't met yet.

I remember that there is a similar early Garfield strip along these lines. Garfield and Odie sing with each other. Jon comes along singing something different, represented by a different note. In the last panel, the animals shout their note at him while Jon reacts in surprise. It's one of the more entertaining early Garfield strips, I seem to remember.