Adaptations of The Chronicles of Narnia released the series on audiobook read by Sir Michael Hordern with original music composed by Michael J. Leslie and performed by Marisa Robles, as well as releasing a version read by the actor Tom Baker. From 1998 to 2003 Focus on the Family Radio Theatre recorded all seven Chronicles of Narnia on CD. Each book had three CDs apart from "The Magician's Nephew" and "The Lion, the Witch and the Wardrobe" which both had two CDs. They were released in association with The C.S. Lewis Company, with an introduction by Douglas Gresham. They used a cast of over one hundred
The Chronicles of Narnia: The Lion, the Witch and the Wardrobe (soundtrack) written, recorded, produced and mixed in a week; Heap said she needed "like a year more than I got" and considered the experience of handing in the song an hour after completing it "[p]retty scary". According to her, the creation of the song was difficult because "The Chronicles of Narnia" is a family film, so she "had to be quite descriptive and not too electronic" when making the song. The soundtrack includes the song "Wunderkind", which Alanis Morissette wrote and recorded in three days; it was produced by Mike Elizondo. According to her, after watching a rough cut of the