Congratulations! You made it through a terrible week. As an aural reward, here’s “Over and Over Again,” from Nathan Sykes, formerly of the Wanted, featuring Ariana Grande. (The two first sang together on Grande’s “Almost Is Never Enough” from her 2013 debut album.) “Over and Over Again” trades high production values for a little spare piano music, artfully highlighting both their soaring voices and the nearly infinite number of echoes reverberating from the walls of the warehouse or abandoned airplane hangar or massive cavern where they must have recorded this song.