Fade between songs in Music on Mac
You can set Music to fade in each song (gradually increase its volume) while the previous song is fading out. This feature, called crossfading, prevents gaps of silence between songs.
Note: When Prefer HDMI Passthrough is selected in Playback settings, songs no longer fade in and out. Turn HDMI Passthrough off to resume crossfading. See Change Playback settings.
Go to the Music app
on your Mac.Choose Music > Settings, click Playback, then select Crossfade Songs.
To change the amount of time it takes for the current song to fade out at the end and the new song to fade in, drag the Seconds slider.
When Music plays consecutive tracks from the same album, crossfading is automatically turned off, with no fading between the songs (or tracks).
To play songs without fading, unselect Crossfade Songs in Playback settings.