How did Mozart use several simultaneous themes in the Jupiter Symphony?

In his Jupiter Symphony (Symphony No. 41 in C Major, K 551), Wolfgang Amadeus Mozart demonstrates his mastery of counterpoint—the technique of combining distinct melodic lines—most notably in the finale.

While the symphony is structured in sonata form, the final movement is celebrated for its complex, rich texture that incorporates fugal procedures. Mozart integrates these different melodic ideas by having various sections of the orchestra perform them simultaneously, blending them into an intricate, unified mix. The movement culminates in a grand apotheosis characterized by five-voice fugal counterpoint, showcasing his ability to maintain the independence of individual melodic lines while ensuring they form a harmonious whole.