Wi-Fi® music sync updates song details on your BlackBerry® device about once every hour, so it might take an hour after changes are made to your music library on your computer before all the song details that are in your music application appear on your device. If you want the song details to appear before then, in the Wi-Fi Music Sync list on your device, press the Menu key and click Sync Now, or connect your device to your computer with a USB cable.