Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/_1850/Nelson.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-71650-Nelson.abc 144 ABC music file with the extracted tune(s)
Tune-71650-Nelson.txt 144 Plain-text file with the extracted tune(s)
Tune-71650-SCD_RoyGoldring_15SocialDances.abc 167 ABC music file with the extracted tune(s)
Tune-71650-SCD_RoyGoldring_15SocialDances.ps 6 PostScript
Tune-71650-SCD_RoyGoldring_15SocialDances.txt 167 Plain-text file with the extracted tune(s)
Tune-71650-get.log 7617 Log file, useful mostly for debugging
These files should be available for 24 hours.