Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book01/Nelson.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-4063-Nelson.abc 145 ABC music file with the extracted tune(s)
Tune-4063-Nelson.txt 145 Plain-text file with the extracted tune(s)
Tune-4063-get.log 3083 Log file, useful mostly for debugging
Tune-40630-get.log 5708 Log file, useful mostly for debugging
Tune-40632-get.log 1521 Log file, useful mostly for debugging
Tune-40636-get.log 10512 Log file, useful mostly for debugging
Tune-40637-get.log 4030 Log file, useful mostly for debugging
These files should be available for 24 hours.