LG Muziq User Manual page 201

Note:
If you wish to receive text messages without interrupting your music,
your phone must be set to vibrate mode and the music must be playing in
the background.
186 Section 3B: Sprint Music and Your Player
Send Text Msg. launches the Messaging application
and allows you to send a new text message.
Web launches the built-in Internet browser.
My Content launches the My Content menu screen.
On Demand launches the On Demand application.
Music launches the music Player tab. This is similar
to selecting Music Library from the Main LCD and
pressing .
If you are currently playing a music file, selecting
Music opens the Player tab with the current song
properties displayed.