Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/S/Gow-CSR3-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_49490.log 1572715 Log file, useful mostly for debugging
Tune-49490-Gow-CSR3-abc1.abc 147 ABC music file with the extracted tune(s)
Tune-49490-Gow-CSR3-abc1.txt 147 Plain-text file with the extracted tune(s)
Tune-49490-get.log 3189 Log file, useful mostly for debugging
These files should be available for 24 hours.