An organ fantasia based on this piece, Opus 27, was a breakthrough work for Max Reger (“RAY-guh”). This piece’s opening rhythm “pickup quarter, half half, half quarter, half quarter, half, half” is often replaced with a 4/4 isometric version. Oboe and continuo play this piece as a cantus firmus under a vocal diminution of it, in fugue, to begin Bach’s first posthumously published cantata. A mostly descending C major scale on the words “the kingdom is ours forever” ends this piece, which opens on the melody (*) “C C C, G A B, C B A, G.” Raoul’s feast is interrupted by this piece, which the title group sings to their death, in Meyerbeer’s (-5[1])Les Huguenots. (10[1])The last movement of Mendelssohn’s Reformation (10[1])Symphony is (10[1])based on this piece to honor the German princes who sang it at the Augsburg Confession. For 10 points, name this Martin Luther hymn whose title alludes to God as “defense and weapon.” ■END■