In which city did Mozart spend most of his career?

Wolfgang Amadeus Mozart spent the majority of his professional life in Vienna, which became the center of his productive and creative output. After moving there in 1781, he composed many of his most famous works, including operas, symphonies, chamber music, and concertos. Vienna was a vibrant cultural hub during Mozart's time, and his presence there allowed him to engage with other prominent musicians and patrons, which influenced his style and success. He remained in Vienna until his death in 1791, solidifying the city's importance in his career.

In contrast, Berlin, Salzburg, and Paris were significant in their own right but did not serve as the primary location for Mozart's work. Salzburg is where he was born and began his career, but he left due to limited opportunities. Paris was a notable city for music, but his time there was relatively brief, and he did not establish a lasting career.