Franz Xaver Gerl have been the composer of the aria "Ein Weib ist das herrlichste Ding", for which Mozart wrote a set of variations for piano, K. 613 (the composer may instead have been another singer-composer in the troupe, Benedikt Schack). Mozart gradually came to participate more in the activities of the Schikaneder troupe, culminating in his opera "The Magic Flute" (1791), with libretto by Schikaneder. Gerl premiered the role of Sarastro, and continued to sing this part in many performances through 1792. He left Schikaneder's troupe in 1793. Gerl may have been a participant in a rehearsal of Mozart's "Requiem" on the
Wolfgang Amadeus Mozart and Prague had allegedly rejected it. Mozart arrived on 28 August 1791 and left in the third week of September. The opera received its first performance on 6 September 1791. Unlike the first two visits, Mozart was not the center of attention on his last visit. Rather, his activities were much overshadowed by the ceremonies of the Imperial court. The grief exhibited for Mozart in Prague after his death on 5 December 1791 far exceeded that witnessed in any other European city. Daniel E. Freeman has pointed out that whereas Mozart (one of history's greatest musicians) was laid to rest in Vienna