This morning I listened to the soundtrack of You're a Good Man, Charlie Brown, and I noticed a lot of things.
"Snoopy"
The melody for "Sturdy roof beneath my head" also describes the relative positions of those things. "Sturdy roof" is sung to the phrase D E D, and "beneath my head" to D D B A. So "roof" (D) really is "beneath my head" (A).
"My Blanket and Me"
After not being able to leave his blanket on the floor, Linus rushes back to it, and there's the line "Got you back again" sung to a palindromic phrase (C D E D C). (In a bonus track with a different performer, it's a half step lower: Bb C D C Bb). The palindromic nature of that phrase represents the coming back.
"Dr. Lucy"
Near the end, when Lucy sings, "You have the distinction to be no one else but the singular, remarkable, unique Charlie Brown," there's a dissonant note (corresponding to "unique") on a chromatic percussion instrument (I can't quite tell what it is; vibraphone, maybe). That dissonant note represents what - at the beginning of the song - Lucy calls "everything that's wrong with" Charlie Brown .
At the end, after Lucy's line "That'll be five cents, please," there's a Bb note played on piano followed by a rumbling descent to an Eb. In a different version of the song (inexplicably with a different title: "The Doctor Is In") included as a bonus track, there're just single notes: a Bb followed by an Eb a fifth lower. That interval (a fifth) and its descent musically represent Charlie Brown's putting down a nickel.
"The Red Baron"
Last time I did Collection Audit, I mentioned that part of the vocal melody from "Over There" is played in this. I'm a bit more familiar with "Over There" now, so I noticed that "The Red Baron" also starts with the same four-note descending phrase that's in the bass register at the beginning of the chorus of "Over There" (the same pitches even: Bb A G F):
(notation found here)
"T-E-A-M (The Baseball Game)"
After the batter hit Charlie Brown's pitch, Lucy caught it "as easy as pie / Then dropped it." The "Then dropped it" is sung to a descending melody C# A G, in the same way that Lucy drops the ball.