Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/slide/Gow-CR-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_4447.log 465409 Log file, useful mostly for debugging
Coll_44470.log 256809 Log file, useful mostly for debugging
Coll_44471.log 1632620 Log file, useful mostly for debugging
Coll_44473.log 286210 Log file, useful mostly for debugging
Coll_44475.log 923819 Log file, useful mostly for debugging
Form_44478.log 823 Log file, useful mostly for debugging
Tune-4447-Gow-CR-abc2.abc 149 ABC music file with the extracted tune(s)
Tune-4447-Gow-CR-abc2.txt 149 Plain-text file with the extracted tune(s)
Tune-4447-get.log 3167 Log file, useful mostly for debugging
Tune-44470-get.log 18675 Log file, useful mostly for debugging
Tune-44471-get.log 17940 Log file, useful mostly for debugging
Tune-44473-get.log 4263 Log file, useful mostly for debugging
Tune-44476-get.log 179639 Log file, useful mostly for debugging
Tune-44478-get.log 4084 Log file, useful mostly for debugging
These files should be available for 24 hours.