Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1783/MMM2.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-16131-CSRHW-abc1.abc 153 ABC music file with the extracted tune(s)
Tune-16131-CSRHW-abc1.pdf 2217 Portable Data Format
Tune-16131-CSRHW-abc1.ps 6 PostScript
Tune-16131-CSRHW-abc1.txt 153 Plain-text file with the extracted tune(s)
Tune-16131-MMM2.abc 141 ABC music file with the extracted tune(s)
Tune-16131-MMM2.txt 141 Plain-text file with the extracted tune(s)
Tune-16131-get.log 7963 Log file, useful mostly for debugging
These files should be available for 24 hours.