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

your answer will be the sousaphone

Explanation:

The sousaphone is named after John Philip Sousa (1854-1932), who had early sousaphones made according to his specifications in the late nineteenth century.

answer; i believe the correct answer is (forms with no projecting parts that could break;