Leopold Mozart (1719-1787) was an Austrian violinist, teacher, and composer, the father and principal teacher of Wolfgang Amadeus Mozart. On his father's death in 1736, he was sent to Salzburg to study for the priesthood. When he ended these studies, he found a job as a valet and musician in a noble family. He worked himself up through the ranks and in 1757 became court composer to the Prince-Archbishop of Salzburg. For the rest of his life he held his Salzburg position, educated his children, and directed the career of his son until Wolfgang's majority. Leopold was a skilled composer of considerable imagination, good enough that some of his own work was confused with that of his son. Most of this music was written in the earlier part of his career; his composition trailed off as he devoted more of his attention to the development (and exploitation) of Wolfgang's talents. Another important contribution to music was his exceptionally fine treatise on violin playing, published in 1756.
Concerto for Trombone and wind ensemble is extracted from Leopold Mozart's nine movement "Serenade" of 1755, three movements of which are original for trombone.