Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/dmoi/BB50.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-16755-24CountryDances_1793_Preston.abc 168 ABC music file with the extracted tune(s)
Tune-16755-24CountryDances_1793_Preston.ps 6 PostScript
Tune-16755-24CountryDances_1793_Preston.txt 168 Plain-text file with the extracted tune(s)
Tune-16755-BB50.abc 141 ABC music file with the extracted tune(s)
Tune-16755-BB50.txt 141 Plain-text file with the extracted tune(s)
Tune-16755-get.log 12522 Log file, useful mostly for debugging
These files should be available for 24 hours.