The hymn text is “Hail to the Lord’s Anointed” (LSB 398), a hymn we sang at my church this morning. On the recording you link, though, the hymn is being sung to an alternate tune, “Es flog ein kleins Waldvögelein” (LSB, p. 204):
http://www.hymnary.org/media/fetch/104490
Thanks for the reply. I’ve listened to it several times today. I missed church today (go ahead and slap me) due to cedar pollen allergies, so the Lutheran Hour was my “church” for today.
Here is his reply.