HTC DROID Incredible - Manual (Page 242)

 Music
Deleting playlists
In the Library, tap or slide your finger on the bottom row to go to
the Playlists category.
Press MENU and then tap Delete playlists.
Select the playlists to delete and then tap Delete.
Setting a song as ringtone
You can select a song from the Music application’s Library and set it
as your phone’s ringtone or a ringtone for a certain contact.
Press HOME , tap , and then tap Music.
Tap at the bottom-left corner of the screen to go to the
Library.
In the Library, select the song that you want to use as ringtone
and then play it back.
On the Playback screen, press MENU and then tap
Set as
ringtone.
In the Set as ringtone options menu, tap
Phone ringtone or
Contact ringtone.
If you select
Contact ringtone, you need to select the contacts
you want to associate the song with in the next screen.
Checking if the song was added as a ringtone
On the Home screen, press MENU and then tap Settings.
On the Settings screen, tap Sound > Phone ringtone. The song
should be in the ringtone list and selected.
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