Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/JamesOswald/CPC/slurs.abc/proto"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Tune-7494-get.log 3115 Log file, useful mostly for debugging
Tune-7494-proto.abc 159 ABC music file with the extracted tune(s)
Tune-7494-proto.txt 159 Plain-text file with the extracted tune(s)
Tune-74947-OfNobleRaceWasShinkin_PLFD1695_334.abc 374 ABC music file with the extracted tune(s)
Tune-74947-OfNobleRaceWasShinkin_PLFD1695_334.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-74947-OfNobleRaceWasShinkin_PLFD1695_334.ps 33355 PostScript
Tune-74947-OfNobleRaceWasShinkin_PLFD1695_334.txt 374 Plain-text file with the extracted tune(s)
Tune-74947-get.log 5891 Log file, useful mostly for debugging
These files should be available for 24 hours.