Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/cache/Gow-CSR3-abc2.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_41223.log 461848 Log file, useful mostly for debugging
Tune-41223-Gow-CSR3-abc2.abc 151 ABC music file with the extracted tune(s)
Tune-41223-Gow-CSR3-abc2.txt 151 Plain-text file with the extracted tune(s)
Tune-41223-get.log 3201 Log file, useful mostly for debugging
These files should be available for 24 hours.