Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/ONeills/Rare_Small/0020_Jollity.abc/book0"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Coll_83206.log 266066 Log file, useful mostly for debugging
Tune-83206-book0.abc 169 ABC music file with the extracted tune(s)
Tune-83206-book0.txt 169 Plain-text file with the extracted tune(s)
Tune-83206-get.log 3187 Log file, useful mostly for debugging
These files should be available for 24 hours.