As the release of new album X approaches, Sheeran dropped the official audio of a new tune, "Afire Love," on his YouTube page on Monday (June 16). From the title, the song might seem hopeful, perhaps bright.

Instead, it's a song about Alzheimer's and how one deals with a loved one who you see slowly slipping away from you. In particular, Sheeran wrote the song about his grandfather, who struggled with the disease for over 20 years. He began writing two weeks before his grandfather died, finishing it at his funeral.

"Things were all good yesterday / And then the devil took your memory," Sheeran opens the song shortly after an intro featuring airy strings and sobering piano.