Spending time mixing a song is essential if you want it to get noticed. It?s now possible for amateurs to produce decent music with a computer, sound card and sound modules. Every song is different and the complexity of the mix depends on the instruments used, the bandwidth each instrument occupies and the frequency spectrums used. The dynamics of the instruments also differ and learning how to manage these successfully is an art in itself. But as the old adage says, practice makes perfect! If you have an excellent ear and an unlimited amount of patience, you too can master the art.