Instructions
Power on your PSP.
Select “Music” from the home screen.
Choose where you will be playing music from--either saved on the system, the memory card or a UMD.
Press “X” to view the music.
Choose a song to play by pressing “X.”
Press "Triangle" on your PSP to open the Control Panel.
Enable “Group Mode” by selecting the icon that resembles a cube. Do not select the cube icons that have the plus or minus signs on them; select the plain cube icon. When you set the PSP to "Group Mode," it will play whatever group the song you selected is in.