Final answer:
Dizzy Gillespie was the influential trumpeter of the 60s who used his music and public persona to advocate for social change, including civil rights and opposition to the Vietnam War. His mock presidential campaign and the vision for a 'Blues House' highlighted his commitment to creating a harmonious society.
Step-by-step explanation:
The trumpeter who performed and recorded new music of great importance in the 60's and is closely linked to significant social changes of that era is none other than Dizzy Gillespie. Gillespie was not just a musician; he was also involved in political activism, using his music and public persona to address issues such as racial segregation, the Vietnam War, and poverty. His mock presidential campaign highlighted the demand for civil rights and the need to end the Vietnam War, leveraged by his significant influence as a jazz musician. Moreover, Gillespie's vision of an inclusive "Blues House" instead of the White House underscored his dedication to creating a harmonious society through the principles of jazz music.
Gillespie's music and political engagement were a part of the broader American political and cultural scene in the 1960s, which was marked by civil rights movement, anti-war protests, and a turning point in the country's history. As a legendary trumpet player, Dizzy Gillespie personified the idea that artists could use their craft to influence political discourse and advocate for social change.