1·It has been created by Booktrack which synchronises music to each novel. It is funded by Peter Thiel, a co-founder of PayPal.
由一个年轻作家创作，是最早尝试根据情节来配乐以增强悬疑感的小说之一。
2·ICloud synchronises all the music and mobile apps a customer has purchased, copying files on request to any computer or device associated with a user's account.
使用iCloud的用户可以随时同步他们所有已购买到的音乐和应用软件，只需一个账户便可以传输文件到任何一台的计算机。