Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/DukeOfPerthM.abc/500"

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
List99493.log 154 Log file, useful mostly for debugging
Tune-99493-500.abc 148 ABC music file with the extracted tune(s)
Tune-99493-500.txt 148 Plain-text file with the extracted tune(s)
Tune-99493-get.log 3072 Log file, useful mostly for debugging
These files should be available for 24 hours.