Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/dup/CDfNH1783.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-3500-CDfNH1783.abc 145 ABC music file with the extracted tune(s)
Tune-3500-CDfNH1783.txt 145 Plain-text file with the extracted tune(s)
Tune-3500-get.log 7186 Log file, useful mostly for debugging
Tune-35001-get.log 5026 Log file, useful mostly for debugging
Tune-35002-get.log 8713 Log file, useful mostly for debugging
Tune-35003-get.log 4005 Log file, useful mostly for debugging
Tune-35004-get.log 4245 Log file, useful mostly for debugging
Tune-35009-get.log 4748 Log file, useful mostly for debugging
These files should be available for 24 hours.