OS X 10.8 or later only. This applet plays each track in the selected iTunes playlist for a set time interval optionally starting at a set number of seconds into each track, beginning with the selected track. Handy for 'scoping playlists.
Settings are saved between launches.
Perhaps of Interest...
downloaded 4m 29s ago
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags
downloaded 6m 9s ago
Batch set new Last Played/Last Skipped of selected tracks
downloaded 10m 13s ago
Use tag data to formulate new file name for selected tracks' files
downloaded 12m 37s ago
Batch merge and/or delete playlists
downloaded 21m 54s ago
View/Edit tags of selected track(s) in single window
downloaded 25m 52s ago
Display and export playlists' name, size, time, and track count for selected source