It is the 20th century, and a category called the contemporary music is born. When it says what is the present age, it is that it has begun to be conscious of the form called the jazz as one characteristic to have been European music complete devotion. 1 is already that sound was reviewed not music theory. The spread of electric musical instruments is related, too. 

Steve Reich, Stockhausen, John Cage, Philip Glass, Pierre Henri are famous. I made Phase sounds when I said what they did because some let you play in concert while moving one sound between time and let I picked up a violinist on Helicopter and play it, and a speaker posted Sara for the doh yes said to every sound of the helicopter when I could tell it. I repeat an experimental thing. 

The benefit becomes the idea of the effector which we use commonly now. Phaser and a thing such as the flanger are machines doing their experiment automatically. 

And a synthesizer appears, and we young person taking music succeeds the contemporary music accelerating more and more now. The techno like minimalism is what they began. As for sampling it, a thing will be the product worth most. 

Is good again, and consider it, and want to make music what the music that present, we who were the 21st century are good at is; nowadays.