Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book18/slurs.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_17322.log 127535 Log file, useful mostly for debugging
Coll_17334.log 259043 Log file, useful mostly for debugging
Coll_17349.log 133934 Log file, useful mostly for debugging
Form_17395.log 1020 Log file, useful mostly for debugging
Tune-173-get.log 3057 Log file, useful mostly for debugging
Tune-173-slurs.abc 144 ABC music file with the extracted tune(s)
Tune-173-slurs.txt 144 Plain-text file with the extracted tune(s)
Tune-17312-get.log 3640 Log file, useful mostly for debugging
Tune-17363-get.log 6901 Log file, useful mostly for debugging
Tune-17387-get.log 3373 Log file, useful mostly for debugging
These files should be available for 24 hours.