Sometimes when we like a particular artist or an album, then we might just want to play that whole album or that artist on iPhone 4. Here's how you can Voice control to do so:
1. On the iPhone 4, press and hold on the Home button and soon you will see then Voice Control Screen appears along with a beeping noice. If you want to use the earpiece then press and hold on the Center button.
2. Now say the following command to play:
Play album <name of album>.
Play artist <name of artist>.
Play playlist <name of playlist>.
To cancel Voice Control you can say cancel or stop.