Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1783/William_Clarke_MS_1770.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_51818.log 869332 Log file, useful mostly for debugging
Tune-51818-William_Clarke_MS_1770.abc 159 ABC music file with the extracted tune(s)
Tune-51818-William_Clarke_MS_1770.txt 159 Plain-text file with the extracted tune(s)
Tune-51818-get.log 3369 Log file, useful mostly for debugging
These files should be available for 24 hours.