Here's how you can change the categories shown by default on the iPhone's music player.
1. Open the iPhone music player.
2. Tap the More button in the bottom right corner.
3. Tap the Edit button.
4. Drag the categories you want and drop them onto the current icons at the bottom.
5. Tap the Done button when you are finished.
For more, see the original article at the link below.
Four time-saving iPhone tips | CNet