equalizer preset option for each song

On right-clicking a song the menu should display the option to set a equalizer preset for the particular song and return to the default preset on the next change in play list.

If a song does not have a preset preference then the default preset should be used.
If a song has a preset preference then that preset should be used.

A symbol and a preference number should be displayed in the playlist window
A drop down should be there in the preference number to change the preset.