Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1751/proto.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-83280-Button_Whitaker_12ElegantNewDances_1810.abc 178 ABC music file with the extracted tune(s)
Tune-83280-Button_Whitaker_12ElegantNewDances_1810.ps 6 PostScript
Tune-83280-Button_Whitaker_12ElegantNewDances_1810.txt 178 Plain-text file with the extracted tune(s)
Tune-83280-get.log 7648 Log file, useful mostly for debugging
Tune-83280-proto.abc 142 ABC music file with the extracted tune(s)
Tune-83280-proto.txt 142 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.