At the beginning of the 16th century a mighty axis was formed in Europe: the Spanish royal house joined with the Habsburg Empire, to which belonged also the nothern parts of Italy. These ties were a reason for numerous travels undertaken by envoys, diplomats and also rulers, who usually – as an important element of representation – were accompanied by ensembles of trumpeters. A huge ensemble of the Viennese court ca 1600 consisted of 30 trumpet and timpani players. Its Spanish counterparts were two slightly smaller ensembles: first, established before joining Isabela and Ferdinand courts, and the other one: a newly-founded ensemble of the Italian trumpet players.
During his lifetime, Johann Pachelbel (1653–1706) was best known as an organ composer. He wrote more than two hundred pieces for the instrument, both liturgical and secular, and explored most of the genres that existed at the time. He is considered to be the apex of the 17th century’s south German organ school and generally one of the most important composers of the middle Baroque.
By December 1791, Wolfgang Amadeus Mozart had written the defining compositions in every available musical genre of his time: symphony, chamber music, masses, and—above all—opera. Opera was the prestige genre of the time, and Mozart loved it dearly and counted on it heavily for personal, professional, artistic, and financial reasons. Just the thought of opera, as Mozart wrote, made him "beside myself at once."