Last April, I transcribed "O Living Bread from Heaven" (sung to the tune "Ach Gott vom Himmelreiche"), and I noticed a small feature in the fourth verse.
The line "My course on earth is lengthened" is sung to this phrase:
"Lengthened" is sung to a number of pitches (F# E F# D), and because it's extended, there's a musical sense of the word's meaning.