Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/session/Oivan_Ilo/polkas.abc/set" 
<head>
404 Not Found</title>
<body>
Not Found</h1>
The requested URL /~jc/music/session/Oivan_Ilo/polkas.abc/set was not found on this server.</p>
</html>
[get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Tune-65303-get.log 2717 Log file, useful mostly for debugging
Tune-65303-set.abc 155 ABC music file with the extracted tune(s)
Tune-65303-set.txt 155 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.