Import your music tracks. Open a new Logic project and drag each music file onto its own Logic audio track. The audio tracks appear as horizontal bars on the grid in your main window, and contain names like Audio Track 1 and Audio Track 2.
Arrange your songs in the order in which you would like them to play. Think of Logic’s horizontal grid as a timeline. Your second song should begin right as your first one ends, and your third should begin as your second one ends. Leave about five seconds of overlap between each song. So if song No. 1 ends at 3:52, song No. 2 should begin at 3:47.
Click “Track” in the menu bar of Logic’s main window and select “Show Track Automation” from the drop-down menu. You will then see extra space beneath each track, along with a button that reads “Volume.” You will also see a horizontal line beneath each track, signifying the track’s volume. If you drag the volume line upward, the volume increases. If you drag it downward, the volume decreases. Use this to create a fade-in effect for each starting track, and a fade-out effect for each ending track.
To create the fade-in effect, drag the volume line to the very bottom of the bar and then click the line in the exact spot where you want to fade to begin (at the beginning of the song). A small dot will appear in that spot. Create another dot on the same line five seconds ahead, and drag that second dot up to the center of the bar. The line between the two dots will look like an upward slope. Do this at the beginning of every song except the first.
To create the fade-out effect, click the volume line in the spot where the overlap begins at the end of each song. Then create another dot where the overlap ends five seconds later and drag that dot down to the bottom of the bar, gradually silencing the volume. The line between the two dots will look like a downward slope. If done correctly, each song will fade out just as the next fades in, creating a natural, smooth segue.