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.
Droplet/applet adds files, creates playlists based on artist-album or folder name
Display, create text file listing info of dead tracks
Locates pairs of track entries pointing to the same file
Play through each track in a playlist at your set interval
Remember current track when quitting iTunes, pick up playing on next start
Change the settings of hidden iTunes preferences