Mastering is the final step in making the music professional. Once the mastering is done, the audio files are sent for duplication or digital distribution. The process of mastering adds the finishing touches to the song. What mastering does to the audio track is to alter the dynamics, frequency and volume for making the music sound sweeter. Mastering can be corrective as well as enhancement oriented. When the mastering is performed on a perfect mix it enhances the feel of the music. Mastering is done by adding eq and compression to the musical track wherever required. It also levels the volume of the tracks so that one does not have to change the volume every time the track changes. In short, the mastering process adds consistency to the whole album. The mastering services add a great deal of punch to the musical track, by increasing the loudness, eliminating the noise and making the sound sweeter. This is what makes the music track, professional and ready to compete in the demanding music world. When such tracks are played on the radio, they sound sweeter and melodious. The need for professional mastering services has led to beginning of the online mastering services. Online mastering services are way too easy to access and equally affordable. The online mastering service is for the benefit of those who donít have easy access to attended mastering services. The good news is that the attended mastering services are highly affordable and performed on the same set of equipments.