Prof. Ambrose has revised and enlarged into one volume his 2006 two-volume English translations of virtually all the vocal works of Johann Sebastian Bach. By preserving the meter and key-word placement of the original,
J.S. Bach: The Vocal Texts in English Translation with Commentary
is a good guide to the poetics of Bach's music and will help listeners and interpreters perceive more clearly Bach's own "translation" of text into music.