Android devices will be required to download sound libraries before using Smart Jam and Quick Jam.
To download the sound libraries, entering the music page for the first time will prompt you to download the files. If at that moment you decide to dismiss the download, attempting to enter the Smart Jam page or selecting a Quick Jam genre will reopen the prompt.
You may continue to use the app while the files download in the background, and a prompt will appear to let you know once the download has finished.