Music has come a long way in past few decades. Thanks to advancement of technology that today music is not limited to the traditional version. Nowadays, music can be produced and modified by various electronic means and hence these are known as electronic music. Thus, while composing a piece of music, the composer should have in mind the electronic processing which will be applied to his music.
This does not mean that if you play a popular music on an electric guitar, then it becomes an electronic music. In fact, any composition which is produced by electronic oscillators like square waves, sine waves etc., the sound that microphone has picked, microprocessors which are first recorded and later editing is performed to give it a permanent form. It is not necessary for an electronic music to be played alone. It can be combined with traditional musical instruments too.
There are different genres of electronic music which are ambient, hardcore, break beat, hard style, disco, down tempo, hip hop music, techno music etc. Digital music can be easily edited and processed without much effort. This allows the composer to figure out any flaw in the music easily and accordingly rectification can be done.
For an electronic music, one requires a good computer system with software which is specifically used for such music. This allows the composer to mix or arrange his composition. There are wide ranges of editing tools available which are great for enhancing music. And usually such tools offer great features for creating, arranging and mixing of music. Some of these are open source initiative and thus can be even used for free. These tools help in reducing noises and any part of the music can be easily cut and paste. You can even blend a number of music tracks together.