Audio mastering involves finding the best tunes to the songs. When the song is to be released for commercial sale, it needs mastering. Mastering is the final stage of music making process, which is succeeded by the process of mixing and recording. It is essential to get your musical piece mastered. Mastering renders finesse and polish to the musical tracks. The process of music making involves the following steps: Recording: Recording is carried out when the performance is captured on a tape or hard disk. Mixing: Mixing is the process of blending together multiple recorded tracks using a mixing console. When the mastering is done, the sound comes out refined. The master engineer performs the process of mastering. The engineer is assisted in his task by the years of experience and the well equipped mastering studio. Replication: Mastering enables the replication or duplication process of the source code. Master is the template on which the final source is developed. The mastering process is highly affordable and cheap when it is done on online mastering sites. The online mastering renders the same levels of quality, which is given when the mastering is performed in an attended mastering service. cheap audio mastering services have led to the increase in popularity of the mastered tracks. When the mastering is performed, it contributes to the quality of the song. Mastering is done using processes like compression, equalization and editing. Once the process is over, the difference is obvious and what the process can do also becomes obvious.