Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/DftY/Thompson.abc/1780"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Tune-8852-1780.abc 150 ABC music file with the extracted tune(s)
Tune-8852-1780.txt 150 Plain-text file with the extracted tune(s)
Tune-8852-get.log 3045 Log file, useful mostly for debugging
Tune-88521-086_Nutting_Tree.abc 704 ABC music file with the extracted tune(s)
Tune-88521-086_Nutting_Tree.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-88521-086_Nutting_Tree.ps 32818 PostScript
Tune-88521-086_Nutting_Tree.txt 704 Plain-text file with the extracted tune(s)
Tune-88521-get.log 5396 Log file, useful mostly for debugging
Tune-88525-139_Round_Good-night.abc 712 ABC music file with the extracted tune(s)
Tune-88525-139_Round_Good-night.pdf 13159 Portable Data Format
Tune-88525-139_Round_Good-night.ps 33021 PostScript
Tune-88525-139_Round_Good-night.txt 712 Plain-text file with the extracted tune(s)
Tune-88525-get.log 5711 Log file, useful mostly for debugging
These files should be available for 24 hours.