Fade effects for iTunes-enable music
- Start iTunes and click on the top left of the rectangular icon.
- In the drop-down menu, select the "settings". Alternatively, the key combination [Ctrl] + [is sufficient].
- You switch to the "playback" tab and put a checkmark in front of "crossfade songs".
- With the slider you can now adjust the duration of your Fade effects.
- Save the Changes afterwards with "OK".

Crossfade effect in iTunes
You want the music playback to further improve, you should use the iTunes Equalizer to enable.