Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1759/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
Tune-66042-EliasHowe_MusiciansCompanionP2-1843-V1.abc 175 ABC music file with the extracted tune(s)
Tune-66042-EliasHowe_MusiciansCompanionP2-1843-V1.ps 6 PostScript
Tune-66042-EliasHowe_MusiciansCompanionP2-1843-V1.txt 175 Plain-text file with the extracted tune(s)
Tune-66042-Gow-CSR3-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-66042-Gow-CSR3-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-66042-get.log 7909 Log file, useful mostly for debugging
These files should be available for 24 hours.