john philip sousa redesigned the tuba to make it more comfortable for carrying while marching. what was the redesigned instrument called?

Sousaphone

Explanation:

There is also a marching tuba called a Contra that you can throw over your shoulder and play.

A Sousaphone sits across both shoulders with the bell of the instrument above the player.

beethoven's first public performance in vienna was on march 29, 1795. he gave a piano concert, or akademie, in vienna's burgtheater as part of an event organized by joseph haydn (probably op. 15). in these early years, beethoven's success as a composer was closely tied to his career and renown as a piano virtuoso.

explanation: