Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/cache/Tune-21780-march.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_77447.log 1658518 Log file, useful mostly for debugging
Tune-77447-get.log 6434 Log file, useful mostly for debugging
Tune-77447-tmp.abc 158 ABC music file with the extracted tune(s)
Tune-77447-tmp.txt 158 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.