Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/session/Oivan_Ilo/Vironpolkka-G,D-16-4.abc/polka" 
<head>
404 Not Found</title>
<body>
Not Found</h1>
The requested URL /~jc/music/session/Oivan_Ilo/Vironpolkka-G,D-16-4.abc/polka was not found on this server.</p>
</html>
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Tune-68135-all.abc 174 ABC music file with the extracted tune(s)
Tune-68135-all.pdf 2217 Portable Data Format
Tune-68135-all.ps 6 PostScript
Tune-68135-all.txt 174 Plain-text file with the extracted tune(s)
Tune-68135-get.log 12152 Log file, useful mostly for debugging
Tune-68135-polka.abc 171 ABC music file with the extracted tune(s)
Tune-68135-polka.txt 171 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.