Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1766/SkillernChalloner_PCD1.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-6126-SkillernChalloner_PCD1.abc 159 ABC music file with the extracted tune(s)
Tune-6126-SkillernChalloner_PCD1.txt 159 Plain-text file with the extracted tune(s)
Tune-6126-get.log 3361 Log file, useful mostly for debugging
Tune-61260-get.log 14411 Log file, useful mostly for debugging
Tune-61261-get.log 3983 Log file, useful mostly for debugging
Tune-61263-get.log 5418 Log file, useful mostly for debugging
Tune-61266-get.log 15181 Log file, useful mostly for debugging
Tune-61267-get.log 7058 Log file, useful mostly for debugging
Tune-61268-get.log 3894 Log file, useful mostly for debugging
Tune-61269-get.log 4579 Log file, useful mostly for debugging
These files should be available for 24 hours.