Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/cache/Tune-8234-air.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_41524.log 270810 Log file, useful mostly for debugging
Form_41524.log 870 Log file, useful mostly for debugging
Tune-41524-get.log 3071 Log file, useful mostly for debugging
Tune-41524-tmp.abc 155 ABC music file with the extracted tune(s)
Tune-41524-tmp.txt 155 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.