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
Symphony, K. 135+61h (Mozart) Symphony, K. 135+61h (Mozart) The Symphony in D major, K. 135+61h, was probably composed by Wolfgang Amadeus Mozart in 1772. All the movements are from the overture to the opera "Lucio Silla", K. 135, except for the minuet, K. 61h No. 3, which was composed separately. The symphony is scored for two oboes, two horns, two trumpets, timpani and strings. \relative c' { </score> The symphony was discovered by Ernst Hintermaier in 1991. The parts he discovered were copied by Matthias Kracher, who was in close connection to Michael Haydn, but probably did not have a direct contact with the