Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/GM/Buningford_Assembly.abc/1753"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Form_86348.log 1009 Log file, useful mostly for debugging
Tune-86348-1753.abc 159 ABC music file with the extracted tune(s)
Tune-86348-1753.txt 159 Plain-text file with the extracted tune(s)
Tune-86348-get.log 3111 Log file, useful mostly for debugging
These files should be available for 24 hours.