Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1798/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-3941-BB50.abc 141 ABC music file with the extracted tune(s)
Tune-3941-BB50.txt 141 Plain-text file with the extracted tune(s)
Tune-3941-get.log 3039 Log file, useful mostly for debugging
Tune-39412-20362_Morgans_Quickstep.abc 635 ABC music file with the extracted tune(s)
Tune-39412-20362_Morgans_Quickstep.pdf 13540 Portable Data Format
Tune-39412-20362_Morgans_Quickstep.ps 34338 PostScript
Tune-39412-20362_Morgans_Quickstep.txt 635 Plain-text file with the extracted tune(s)
Tune-39412-get.log 5942 Log file, useful mostly for debugging
Tune-39413-get.log 2832 Log file, useful mostly for debugging
Tune-39414-10633_Douglass_Favorite-001.svg 17166 Scalable Vector Graphics format
Tune-39414-10633_Douglass_Favorite.abc 710 ABC music file with the extracted tune(s)
Tune-39414-10633_Douglass_Favorite.txt 710 Plain-text file with the extracted tune(s)
Tune-39414-get.log 4587 Log file, useful mostly for debugging
These files should be available for 24 hours.