Wachet auf, ruft uns die Stimme, BWV 140, also known as
Sleepers Wake, is a church cantata by Johann Sebastian
Bach. He composed the chorale cantata in Leipzig for
the 27th Sunday after Trinity and first performed it on
25 November 1731. It is based on the hymn Wachet auf,
ruft uns die Stimme (1599) by Philipp Nicolai. Movement
4 of the cantata (in English, "Zion hears the
watchmen's voices") corresponds to the organ piece BWV
645, the first of the Schübler Chorales.
Although this Aria "Aria Mein Freund ist Mein" (My
Beloved is Mine) was written for Chorus, I created this
arrangement for Woodwind Quartet (Flute, Oboe, Bb
Clarinet & Bassoon).