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

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_67734.log 451411 Log file, useful mostly for debugging
Tune-67734-CDfNH1783.abc 146 ABC music file with the extracted tune(s)
Tune-67734-CDfNH1783.txt 146 Plain-text file with the extracted tune(s)
Tune-67734-get.log 3135 Log file, useful mostly for debugging
These files should be available for 24 hours.