Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1769/Gow-CSR1-abc1.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_22200.log 459810 Log file, useful mostly for debugging
Coll_22205.log 459809 Log file, useful mostly for debugging
Coll_22207.log 210 Log file, useful mostly for debugging
Coll_22209.log 468210 Log file, useful mostly for debugging
Form_22206.log 1004 Log file, useful mostly for debugging
Form_22208.log 1289 Log file, useful mostly for debugging
List22203.log 160 Log file, useful mostly for debugging
List22206.log 160 Log file, useful mostly for debugging
List22209.log 160 Log file, useful mostly for debugging
Sess-22208.log 2325384 Log file, useful mostly for debugging
Tune-2220-Gow-CSR1-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-2220-Gow-CSR1-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-2220-get.log 52063 Log file, useful mostly for debugging
Tune-22201-get.log 14370 Log file, useful mostly for debugging
Tune-22205-get.log 15585 Log file, useful mostly for debugging
These files should be available for 24 hours.