greatest expansions of music in the 20th Century. It was developed from a state of total disregard for keys to an alternative system that Schoenberg described as Composition with twelve notes related only to one another. This method is now commonly known as Serialism as the technique has developed further. Serialism was extended after World War II to include note lengths and dynamics as well as tone. Although this idea was used strictly at first, it is used freely today with less emphasis on complete unpredictability. It was at this time that electronic machines became available that would enable serial music to be created by machines alone, without need for Human sentiment. The first synthesised music was composed in Paris in 1948 by Pierre Henry and Pierre Schaeffer, who recorded onto discs ordinary sounds like dustbins being collected and heartbeats etc. and manipulated the dynamics and tempo of the sounds to create what they called Concrete Music. When tape recorders and synthesisers became readily available after the 1950s, much more sophisticated music could be created and studios of electronic music were set up all over the world. In the aftermath of World War II, most of Europe and many other countries found resuming civilised peace-time activity difficult with the lack of resources like records and sheet music and the apparent lost time which the war had taken up. Many musicians were ignorant of 20th century masterpiece like Stravinskys The Rite of Spring and Bartoks string quartets. Radio broadcasters and International music schools helped to re-educate the generation that had missed out on progressive 20th Century music. Stravinsky is sometimes considered the most important 20th Century composer because of his wild experimentation with sounds and timbres and his development of a number of musical styles, including the Neo-Classical style. His ballet masterpiece, The Rite of Spring, caused a huge uproar when it premiered in 1...
