I recorded this on Friday, and the next day, I stumbled upon what I think may be the source of the title. In the Latin Vulgate, Song of Solomon 2:8 begins, "Vox dilecti mei" ("The voice of my beloved!"). In TLH, the accompanying text is "I Heard the Voice of Jesus Say."
I think this is the only hymn tune I know of that switches from minor to major halfway through.
