Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/cache/Tune-23817-jig.abc/tmp"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Coll_52763.log 273610 Log file, useful mostly for debugging
Form_52763.log 953 Log file, useful mostly for debugging
Tune-52763-get.log 3077 Log file, useful mostly for debugging
Tune-52763-tmp.abc 156 ABC music file with the extracted tune(s)
Tune-52763-tmp.txt 156 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.