In the book, the song is composed on piano by Edward Cullen as a tribute of his love to Bella Swan.
[2] The song that would become known as "Bella's Lullaby" was originally composed by Carter Burwell for his partner, Christine Sciulli, when they were having relationship issues.
[4] When Twilight director Catherine Hardwicke approached Burwell about scoring the film, he understood that "Bella's Lullaby" would be an important part of the soundtrack.
Summit Entertainment requested a piano scene to be added to the script in response to growing anticipation in the blogosphere about the soundtrack, as fans were curious about how "Bella's Lullaby" would be presented.
[3] Robert Pattinson, the actor who played Edward, composed an original piece to use as the lullaby.
The "Bella's Lullaby" scene in Twilight was originally shot using Pattinson's composition, but was later scrapped in favor of Burwell's.
[3] Meredith Goldstein of The Boston Globe praised the song for its "dissonant and longing melody that provokes the emotions one might experience when falling for one's prey.