Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/DftY/Thompson.abc/1782"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Tune-28405-1782.abc 150 ABC music file with the extracted tune(s)
Tune-28405-1782.txt 150 Plain-text file with the extracted tune(s)
Tune-28405-HalfHannikin_PLFD1651_034.abc 365 ABC music file with the extracted tune(s)
Tune-28405-HalfHannikin_PLFD1651_034.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-28405-HalfHannikin_PLFD1651_034.ps 33017 PostScript
Tune-28405-HalfHannikin_PLFD1651_034.txt 365 Plain-text file with the extracted tune(s)
Tune-28405-get.log 8695 Log file, useful mostly for debugging
These files should be available for 24 hours.