Editing Mass in B minor (section)

===IV. Osanna, Benedictus, Agnus Dei and Dona Nobis Pacem===
{{listen|filename=Johann Sebastian Bach - Mass in B minor - Agnus Dei.ogg|title=Agnus Dei aria from Mass in B minor by Johann Sebastian Bach|description=Performed at Latin Cathedral in Lviv, Ukraine.  Performed by Solomija Drozd (contralto), Petro Titiajev (violin), Ivan Ostapovych (organ).  Run time is  four minutes, 41 seconds|format=[[Ogg]]}}

# ''Osanna''

::Double chorus (both four parts) in D major, no autograph tempo marking, {{music|time|3|8}} time signature. A reworking of the A section of the chorus [[Es lebe der König, der Vater im Lande, BWV Anh. 11|''Es lebe der König'', BWV Anh. 11/1]] (1732) or [[Preise dein Glücke, gesegnetes Sachsen, BWV 215|''Preise dein Glücke'', BWV 215]] (1734).
#<li value=2> ''Benedictus''

::Aria for tenor with obbligato instrument (Flute or Violin) in B minor, no autograph tempo marking, {{music|time|3|4}} time signature. 
::Butt writes that Bach "forgot to specify the instrument" for the obbligato;<ref>Butt, ''Bach: Mass in B Minor'', p. 58</ref> Stauffer adds the possibilities that Bach had not decided which instrument to use or that he was "indifferent" and left the choice open.<ref>Stauffer, ''Bach: The Mass in B Minor'', p. 159</ref> The [[Bach-Ausgabe]] edition assigned it to the violin, and Stauffer suggests this choice may have been influenced by Beethoven's use of the violin in the Benedictus of his ''[[Missa solemnis (Beethoven)|Missa solemnis]]''. Modern editors and performers have preferred the flute; as Butt notes, the part never uses the G-string of the violin, and modern commentators "consider the range and style to be more suitable for the [[transverse flute]]." 
::William H. Scheide has argued that it is a parody of the fourth movement of the lost wedding cantata ''Sein Segen fliesst daber wie ein Strom'', BWV Anh. I 14, for which the text begins "Ein Mara weicht von dir" <ref name="William H. Scheide pp. 69-77" /> Stauffer, however, entertains the possibility that it may be new music.<ref name="Stauffer, p. 92" />
#<li value=3> ''Osanna (da capo)''

::As above.
#<li value=4>  ''Agnus Dei''

::Aria for alto in [[G minor]] with violin obbligato, no autograph tempo marking, {{music|common-time}} time signature. Parody of an aria, "Entfernet euch, ihr kalten Herzen" ("Withdraw, you cold hearts"), from a lost wedding serenade (1725). Bach also re-used the wedding aria for the alto aria, "Ach, bleibe doch", of his 1735 [[Ascension Oratorio]] [[BWV 11|''Lobet Gott in seinen Reichen'', BWV 11]]; Alfred Dürr has demonstrated that Bach adapted both "Ach, bleibe doch" and the Agnus dei directly from the lost serenade's aria, rather than from one to the next.<ref>Alfred Dürr, ""Enfernet euch, ihr kalten Herzen": Moglichkeiten und Grenzen der Rekonstruktionen einer Bach-Arie" Musikforschung 39 (1986): pp. 32–36</ref>
#<li value=5> ''{{lang|la|[[Mass in B minor structure#Dona nobis pacem|Dona nobis pacem]]}}''

::Four-part chorus in D major, no autograph tempo marking, {{music|cut-time}} time signature. The music is almost identical to "Gratias agimus tibi" from the ''Gloria''.