"Now That the Daylight Fills the Sky" was one of the hymns in an online church service I watched about a month ago. I don't think I've ever sung (or even heard) this hymn before, but I found a few interesting features in it. It's sung to the tune "Laurel." Here's the first phrase:
The first line is, of course, "Now that the daylight fills the sky." "Daylight" is sung with a melisma (D F# G), musically giving something of a sense of abundance (for "fill[ing] the sky"). The fourth verse is a doxology, which begins, "All praise to You, creator Lord!" That "All" is also sung with a melisma (D E), for a sense of entirety.
There's a similar feature in the second line of the fourth verse: "All praise to You, eternal Word!" Here's the notation:
The specific melisma for this "All" is different (A B), but the idea is the same. Additionally, "eternal" is sung with a melisma (G# A F# F#), giving a sense of duration.