Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/cache/Kerr_MM1-V2.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_65714.log 1471980 Log file, useful mostly for debugging
Tune-65714-Kerr_MM1-V2.abc 353 ABC music file with the extracted tune(s)
Tune-65714-Kerr_MM1-V2.txt 353 Plain-text file with the extracted tune(s)
Tune-65714-get.log 7266 Log file, useful mostly for debugging
These files should be available for 24 hours.