Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/DftY/Preston.abc/1803" 
<head>
404 Not Found</title>
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Not Found</h1>
The requested URL /~jc/music/book/DftY/Preston.abc/1803 was not found on this server.</p>
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[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Tune-13408-1803.abc 149 ABC music file with the extracted tune(s)
Tune-13408-1803.txt 149 Plain-text file with the extracted tune(s)
Tune-13408-JoansPlacket_PLFD1687_273.abc 366 ABC music file with the extracted tune(s)
Tune-13408-JoansPlacket_PLFD1687_273.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-13408-JoansPlacket_PLFD1687_273.ps 33337 PostScript
Tune-13408-JoansPlacket_PLFD1687_273.txt 366 Plain-text file with the extracted tune(s)
Tune-13408-get.log 8329 Log file, useful mostly for debugging
These files should be available for 24 hours.