Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Whetherly06/CDSS_Gems.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_81833.log 146033 Log file, useful mostly for debugging
Coll_81834.log 622212 Log file, useful mostly for debugging
Tune-8183-CDSS_Gems.abc 153 ABC music file with the extracted tune(s)
Tune-8183-CDSS_Gems.txt 153 Plain-text file with the extracted tune(s)
Tune-8183-get.log 3169 Log file, useful mostly for debugging
Tune-81833-get.log 1464 Log file, useful mostly for debugging
These files should be available for 24 hours.