This applet will allow you to create a "mega" playlist built by appending the tracks of chosen playlists to it in their play order; the effect being that the contents of the mega playlist will play in "playlist" order.
Append the tracks of a selected playlist in play order to the [-Mega Playlist>. Repeat.
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Batch-change the Album Rating for the albums of selected tracks
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Convert selected tracks and export the converted files to a new folder
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Re-associate batch of dead tracks with files from selected folder
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Add or subtract a user-entered number from each selected track's Plays
downloaded 2h 13m 56s ago
Export selected playlists as individual XML or M3U files
downloaded 2h 17m 17s ago
View/Edit tags of selected track(s) in single window