Technology has allowed us to go from records, to cassette tapes, to CDs, and from CDs, now we have the most common .MP3 file type, which we can store on many of our devices. Not to mention the internet and websites such as You Tube, Sound cloud, Spo ti fy, etc. has allowed music to be shared in many ways!
During this period a Military Dictatorship ruled over Brazil's population, this meant the government persecute and killed the liberal and socialist leaders that stood against the dictatorship. Despite the Dictatorship in Brazil was not as cruel as in other South American countries like Argentina or Chile, it implied the violation of human rights and democratic values.
Depends on what sources you are talking about.
Cars could be produced cheaply even after increasing workers wages