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

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Form_14995.log 968 Log file, useful mostly for debugging
Tune-1499-BB50.abc 142 ABC music file with the extracted tune(s)
Tune-1499-BB50.txt 142 Plain-text file with the extracted tune(s)
Tune-1499-get.log 3039 Log file, useful mostly for debugging
Tune-14994-get.log 1398 Log file, useful mostly for debugging
Tune-14998-get.log 1398 Log file, useful mostly for debugging
These files should be available for 24 hours.