also begins with an extended opening chorus and a chorale fantasia as a conclusion. 1 The festive opening chorus, "", is believed to be based on a movement from the lost secular cantata . The movement has no fugue, but dance-like elements and Lombard rhythm. 2 Bach marks the first recitative of bible narration "Recit. nach dem ersten Chor" (Recitative after the first chorus). It is sung by the (Evangelist), which Bach assigns to the tenor singing secco recitative. The action begins, "" (The Lord Jesus lifted up His hands), with Jesus blessing the disciples and leaving them. 3 A reflecting recitative for bass, "" (Ah, Jesus, is Your departure), shows the situation of the disciples afraid that Jesus will leave them soon. Marked "Rec: col accomp." (Recitative: with accomp[animent]), it is accompanied by the flutes and continuo as a . 4 Deeper reflection is expressed in an aria, marked "Aria Violini unisoni e Alto" (Aria Violins in unison and Alto). The singer requests Jesus to stay: "" (Ah, just stay, my dearest Life). The music is based on a movement from the lost wedding cantata , BWV Anh. 196, written in 1725 on a libretto by Johann Christoph Gottsched. Bach used the model for the alto aria also for the of his Mass in B minor. 5 The Evangelist continues the narration with the Ascension: "" (And He was apparently lifted up). 6 The first chorale, closing part 1, is the fourth stanza of "", written in 1641 by Johann Rist. The text "" (Now everything is subject to You) imagines Jesus in heaven, with the angels and elements serving him. It is composed as a four-part setting, with the instruments playing : oboes and violin I enforce the chorale tune, the flutes an octave higher, violin II plays with the alto, viola with the tenor, and the continuo with the bass. 7 The evangelist begins Part II, "" (And as they watched), telling of two men in white gowns addressing the disciples. The two men are represented by tenor and bass in a duet. 8 A reflecting recitative for alto, "" (Ah yes! Then come back soon;), requests the return of Jesus. Parallel to the bass recitative in Part I, it is also accompanied by the flutes and continuo. 9 The evangelist ends the narration, "" (They however prayed to Him), telling of the disciples' return from the