This script uses the UNIX qlmanage command to display a Quick Look window of the selected track(s), which can be audio, video, and, perhaps most usefully, PDF, whereby Preview.app is not necessary. Also handy for playing a single track out of playlist context. Need I add that a keyboard shortcut makes this very handy.
Caveats: 1) under Leopard a media file will begin playing immediately, so the script uses a hack to prevent this, 2) under Snow Leopard and better the QL window's title contains "[DEBUG]" which cannot be suppressed, and 3) the QL window can only be dismissed by clicking on its close box.
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downloaded 1m 15s ago
Display, create text file listing info of dead tracks
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Batch-change the Album Rating for the albums of selected tracks
downloaded 3m 6s ago
Restore each selected track's artwork from an image file stored in its Album folder
downloaded 40m 54s ago
Display the width x height of selected track's artwork
downloaded 45m 22s ago
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags
downloaded 49m 52s ago
Rename selected tracks' Song Names with their filenames (minus extension)