1950 – Through the division of North and South Korea, both sides of the country were divided primarily through the political views of communism in North Korea and the prevention of the radical party in South Korea. With the involvement of other countries such as the United States, the Korean War was a global impact over the next four years.
1951 – In Australia, the first digital computer known as the CSIRAC was invented by a team led by Trevor Pearcy and Maston Beard. This digital computer later became the very first computer in the entire world that played digital music.
1953 – The earliest music notation playback device, the Composer-Tron, was invented by Osmond Kendal in 1953. The device had a cathode ray tube that would detect shapes and placement notes in patterns on a musical score and play them back in a synthesized manner. This tool became beneficial to composers everywhere to ensure that the music that they were writing sounded the way they wanted to before putting a score and parts in front of an orchestra for the first time.
1954 – ElectronikeStudie II by Karl Stockhausen – Commissioned by the NWDR (Nordwestdeutscher Rundfunk) and performed in Cologne in the Musik der Zeit concert series, this work is paired alongside of his first study of electronic music, this work by Stockhausen focuses on the idea of extrapolate everything in the work based on the number 5. There are five main sections that are split into subsections and that are even divided further into five more subsections, so on and so far five times. Each of the notes are separated into five different types of sine tones, that produce various different types of sounds throughout the entire work.
1955 – Alike the political disagreements of the Koreans, the Vietnam War showed a divide of countries through political differences such as communism in Northern Vietnam versus the prevention of communism and political influence of the United States in Southern Vietnam. Though this war lasted nearly two decades, the Vietnam War involved many countries throughout Southeast Asia, especially the United States in the 1960s.
1956 – The first entirely electronic film score was composed by Louis and Bebe Barron in the film Forbidden Planet. Unlike other film scores that use live musicians, this score is entirely composed by synthesizers, other electronic instruments, as well as other electronic medium.
1958 – After the original invented of the headphones in 1910, the first pair of studio headphones were invented by jazz musician John C. Koss. Unlike the initial invention, the studio headphones created a different type of audio playback where the amplifications could be manipulated to sound in either the left or right ears creating the stereo-like playback.