Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/DftY/Cahusac_JC.abc/1809" 
<head>
404 Not Found</title>
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Not Found</h1>
The requested URL /~jc/music/book/DftY/Cahusac_JC.abc/1809 was not found on this server.</p>
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[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Tune-97719-1809.abc 152 ABC music file with the extracted tune(s)
Tune-97719-1809.txt 152 Plain-text file with the extracted tune(s)
Tune-97719-get.log 2705 Log file, useful mostly for debugging
These files should be available for 24 hours.