Electroacoustic music&electronic music

 
 Unlike classical music in European, electroacoucoustic music doesn't use the classical music instrument and add the electronic musical instruments like computer software, keyboard and so on. Why this attract me is because electronic music is my favorite music genre. The term has been used to describe the music of many DJ Mag Top 100 DJs. And I think they have something in common.I enjoy listening the sounds from various electronic instruments. Although most people think it is noisy, I am addicted in the exciting DJ live's atmosphere.For example,the 2014 ultra music festival in Miami. My friends went to the festival and told me it was awesome!
  Refer to DJ, I have to say one of my favorite DJ--Hardwell. He is Top 1 DJ in 2014. I watched his live at ultra music festival 2014 on youtube. (check it out:https://www.youtube.com/watch?v=cB0zJGnvhj4 )
 Unlike other pop music, it emphasizes the sounds of instruments themselves instead of vocal voice. The remix of multiple electronic sounds by DJ is the main part.

A critical review:"No Such Thing as Silence: John Cage's 4'33"" By Kyle Gann

In this review,it claims that 4'33" was one of the most controversial compositions of the 20th century (among many). I think this is the main idea of this critical review.
http://www.kylegann.com/NoSuchThingasSilence.html

Iindeterminacy in music, electroacoustic music, and non-standard use of musical instruments

Because John cage is a pioneer of indeterminacy in music, electroacoustic music, and non-standard use of musical instruments. So it is necessary to know what are them when we study John Cage.

Indeterminacy in music
 Indeterminacy in music, which began early in the 20th century in the music of Charles Ives, and was continued in the 1930s by Henry Cowell and carried on by his student, the experimental music composer John Cage beginning in 1951 (Griffiths 2001), came to refer to the (mostly American) movement which grew up around Cage. This group included the other members of the so-called New York School: Earle Brown, Morton Feldman and Christian Wolff. Others working in this way included the Scratch Orchestra in the United Kingdom (1968 until the early 1970s) and the Japanese composer Toshi Ichiyanagi (born 1933). Indeterminate music can be divided into three groups.The the John Cage's Music of Changes (1951) is an example that the composer selected duration, tempo, and dynamics by using the I-Ching.

(An excerpt from Book IV of Music of Changes in Cage's calligraphic score. )
It doesn't sound like a melody and no rhythm though. ( Listen:https://www.youtube.com/watch?v=qOwcpjr9wFA&list=PLF8C330ADF440AFB5 )

Electroacoustic music:
Electroacoustic music originated in Western art music during the modern era[citation needed] following the incorporation of electric sound production into compositional practice. The initial developments in electroacoustic music composition during the 20th century are associated with the activities of the Groupe de Recherches Musicales at the ORTF in Paris. One example of John Cage is Imaginary Landscape No. 1 (1939)(http://en.wikipedia.org/wiki/Imaginary_Landscape )

Non-standard use of musical instruments
He used many objects which don't belong to muscic instruments. In his muscic, there are many sounds from household items such as metal sheet. This is inspired by Oskar Fischinger, who told Cage that "everything in the world has a spirit that can be released through its sound."

Why he should be remembered?

John Milton Cage Jr. (September 5, 1912 – August 12, 1992) was an American composer, music theorist, writer, and artist. A pioneer of indeterminacy in music, electroacoustic music, and non-standard use of musical instruments, Cage was one of the leading figures of the post-war avant-garde. Critics have lauded him as one of the most influential American composers of the 20th century.[1][2][3][4] He was also instrumental in the development of modern dance, mostly through his association with choreographer Merce Cunningham, who was also Cage's romantic partner for most of their lives.
 His achives:
 The archive of the John Cage Trust is held at Bard College in upstate New York.[127]
The John Cage Music Manuscript Collection held by the Music Division of The New York Public Library for the Performing Arts contains most of the composer's musical manuscripts, including sketches, worksheets, realizations, and unfinished works.
The John Cage Papers are held in the Special Collections and Archives department of Wesleyan University's Olin Library in Middletown, Connecticut. They contain manuscripts, interviews, fan mail, and ephemera. Other material includes clippings, gallery and exhibition catalogs, a collection of Cage's books and serials, posters, objects, exhibition and literary announcement postcards, and brochures from conferences and other organizations
The John Cage Collection at Northwestern University in Illinois contains the composer's correspondence, ephemera, and the Notations collection.
（By wikipedia http://en.wikipedia.org/wiki/John_Cage#Reception_and_influence)
  After researching his resource, I found that he described his music as "purposeless play". But meanwhile he emphasized that this kind of performance is an affirmation of life.
  On the other hands, he also had a special identity was that he was a mushroom-lover. He founded the New York Mycological Society with three friends. It doesn't sound like a composer and musician would like. But I think everything can happen to him because he is full of wonder and his story is fascinating to attract me to dig more.

John Cage's 4'33''

John Milton Cage Jr. (September 5, 1912 – August 12, 1992) was an American composer, music theorist, writer, and artist.He is one of the most influential American composers of the 20th century
  As we talked in class,he thinks"Any sound is music. Any movement is dance" He doesn't want sound mean anything. Sound and movement are independent.
  Cage is best known for his 1952 composition 4′33″. The content of the composition is not "four minutes and 33 seconds of silence," as is sometimes assumed, but rather the sounds of the environment heard by the audience during performance. And here is a vedio for John's 4'33''. A performance by William Marx of John Cage's 4'33.
Filmed at McCallum Theatre, Palm Desert, CA. ]https://www.youtube.com/watch?v=JTEFKFiXSx4&noredirect=1 First time I watched this performance, I felt weird. But then I thought it is funny because he adds many sounds of daily objects.  I found an interesting thing that there is an 4'33''app for iphone. http://johncage.org/4_33.html