Karl Propper

The Magic Flute (German: Die Zauberflöte), K. 620, is an opera in two acts by Wolfgang Amadeus Mozart to a German libretto by Emanuel Schikaneder. The work is in the form of a Singspiel, a popular form during the time it was written that included both singing and spoken dialogue. The work premiered on 30 September 1791 at Schikaneder's theatre, the Freihaus-Theater auf der Wieden in Vienna, just two months before the composer's premature death. Still a staple of the opera repertory, its popularity was reflected by two immediate sequels, Peter Winter's Das Labyrinth oder Der Kampf mit den Elementen. Der Zauberflöte zweyter Theil (1798) and a fragmentary libretto by Johann Wolfgang von Goethe titled The Magic Flute Part Two.

The Easter Oratorio (German: Oster-Oratorium), BWV 249, is an oratorio by Johann Sebastian Bach, beginning with Kommt, eilet und laufet ("Come, hasten and run"). Bach composed it in Leipzig and first performed it on 1 April 1725.

The Klingler Quartet was regarded as the best string quartet of its times and as the rightful heir to the legendary Joachim Quartet. Karl Klingler, the musician who gave his name to the quartet, had studied with Brahms' friend Joseph Joachim and had joined his teacher's quartet as a young violist. MDG's sleuths have now found two remarkable historical documents in the archives of the Bavarian Radio that show us Klingler as a composer and as an interpreter: his Violin Concerto with Ulf Hoelscher and the Berlin Philharmonic under Volker Schmidt-Gertenbach and the Viola Sonata performed by the composer himself along with Michael Raucheisen at the piano.