Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/D73/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_66067.log 872 Log file, useful mostly for debugging
Tune-6606-BB50.abc 140 ABC music file with the extracted tune(s)
Tune-6606-BB50.txt 140 Plain-text file with the extracted tune(s)
Tune-6606-get.log 3027 Log file, useful mostly for debugging
Tune-66061-get.log 4952 Log file, useful mostly for debugging
Tune-66063-get.log 1329 Log file, useful mostly for debugging
These files should be available for 24 hours.