Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book03/JamesJohnson_ScotsMusicalMuseumV5-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4263-JamesJohnson_ScotsMusicalMuseumV5-V1.ps) >>/Users/jc/w/tmp/Tune-4263-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book03/JamesJohnson_ScotsMusicalMuseumV5-V1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_42630.log 155167 Log file, useful mostly for debugging
Tune-4263-JamesJohnson_ScotsMusicalMuseumV5-V1.abc 175 ABC music file with the extracted tune(s)
Tune-4263-JamesJohnson_ScotsMusicalMuseumV5-V1.ps 6 PostScript
Tune-4263-JamesJohnson_ScotsMusicalMuseumV5-V1.txt 175 Plain-text file with the extracted tune(s)
Tune-4263-get.log 4624 Log file, useful mostly for debugging
Tune-42633-get.log 7437 Log file, useful mostly for debugging
Tune-42634-get.log 4850 Log file, useful mostly for debugging
Tune-42635-get.log 10733 Log file, useful mostly for debugging
Tune-42636-get.log 9277 Log file, useful mostly for debugging
Tune-42637-get.log 9181 Log file, useful mostly for debugging
Tune-42638-get.log 7054 Log file, useful mostly for debugging
Tune-42639-get.log 10145 Log file, useful mostly for debugging
These files should be available for 24 hours.