Joseph Leopold Eybler Autriche Joseph Leopold Eybler (born February 8, 1765, in Schwechat near Vienna; and died July 24, 1846 in Vienna) was an Austrian composer known today perhaps more for his friendship with Mozart than for his own music.
Eybler's main compositions were sacred music, including oratorios, masses, cantatas, offertories, graduals, and his requiem. His other works include an opera, instrumental music (especially his string quintets), and songs.
Of special note may be the clarinet concerto (HV160) he wrote most probably for 'Mozart's' clarinetist Anton Stadler. A recording of this concerto by Dieter Kl÷cker is available on the Novalis music label. (Hide extended text) ... (Read all) Source : Wikipedia