Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1767/RSCDS_Graded2.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-7573-BonAccordCollection.abc 156 ABC music file with the extracted tune(s)
Tune-7573-BonAccordCollection.pdf 2217 Portable Data Format
Tune-7573-BonAccordCollection.ps 6 PostScript
Tune-7573-BonAccordCollection.txt 156 Plain-text file with the extracted tune(s)
Tune-7573-RSCDS_Graded2.abc 150 ABC music file with the extracted tune(s)
Tune-7573-RSCDS_Graded2.txt 150 Plain-text file with the extracted tune(s)
Tune-7573-get.log 8313 Log file, useful mostly for debugging
Tune-75731-get.log 4975 Log file, useful mostly for debugging
Tune-75734-cont.abc 141 ABC music file with the extracted tune(s)
Tune-75734-cont.ps 6 PostScript
Tune-75734-cont.txt 141 Plain-text file with the extracted tune(s)
Tune-75734-get.log 3988 Log file, useful mostly for debugging
These files should be available for 24 hours.