Listen to Messiah: Every valley shall be exhalted - Tenor Air online. Messiah: Every valley shall be exhalted - Tenor Air is an English language song and is sung by Martin Pearlman and Boston Baroque. Messiah: Every valley shall be exhalted - Tenor Air, from the album Handel: Messiah (Highlights), was released in the year 1993. The duration of the song is 3:10. Download English songs online from JioSaavn.