Johann Baptist Henneberg

Johann Baptist Henneberg (5 December 1768 in Vienna – 27 November 1822 ibid) was an Austrian composer, pianist, organist and Kapellmeister.
Career.
From 1790 to 1801 Henneberg was Kapellmeister at the Theater auf der Wieden, then until 1803 at the Theater an der Wien. Later he was employed as an organist by the prince Nikolaus II, Prince Esterházy in Eisenstadt, where he also conducted opera performances. From 1814, Henneberg was organist at the Hofkirche in Vienna, and from 1818 to 1822 also in the Imperial Court Music Chapel.
Henneberg played a decisive role in the rehearsal of Mozart's opera "The Magic Flute". After Mozart himself conducted the premiere on 30 September and 1 October 1791, Henneberg also took over the direction of the following performances. Henneberg also created several operas himself, which enjoyed great popularity at the time. 
In 1797 he composed together with Ludwig van Beethoven menuets and allemandes for a mask ball of the Pensionsgesellschaft bildender Künstler, which was performed on 26 November 1797 in the Großer Redoutensaal der Wiener Hofburg.