Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/cache/Tune-35417-Remick.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_52575.log 900018 Log file, useful mostly for debugging
Form_52575.log 885 Log file, useful mostly for debugging
Tune-52575-get.log 3095 Log file, useful mostly for debugging
Tune-52575-tmp.abc 159 ABC music file with the extracted tune(s)
Tune-52575-tmp.txt 159 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.