"Showdown"

At the end of the choruses in "Showdown," "night" in the phrase "the longest night" is sung with various melismas, musically giving a sense of that length.

"New World Rising"

In the lines "Ev'rybody keep their blues away / Not for a day but evermore" in "New World Rising," the "evermore" is sung with a melisma (G F D B), musically giving a sense of duration.

"Oh No Not Susan"

In "Oh No Not Susan," "sighed" and "sigh" in the lines "And then she sighed" and "Look at her sigh" are both sung to a pair of notes with a slight descent (A G), giving something of a musical impression of a sigh.

Coinciding with the line "And then she laughed" in the second verse, the violins start playing tremolos, somewhat representing that laughing in a musical way.

"Bluebird Is Dead"

I listened to On the Third Day a couple days ago and noticed some things.

In "Bluebird Is Dead," "life" in the line "Little darlin', all my life" is sung with a melisma (B A F#), musically giving a sense of the entirety of that "all."