Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book14/24CountryDances_1791_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3100-24CountryDances_1791_Thompson.ps) >>/Users/jc/w/tmp/Tune-3100-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book14/24CountryDances_1791_Thompson.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-3100-24CountryDances_1791_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-3100-24CountryDances_1791_Thompson.ps 6 PostScript
Tune-3100-24CountryDances_1791_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-3100-get.log 4473 Log file, useful mostly for debugging
Tune-31000-get.log 17652 Log file, useful mostly for debugging
Tune-31001-get.log 3988 Log file, useful mostly for debugging
Tune-31002-get.log 7209 Log file, useful mostly for debugging
Tune-31003-get.log 5638 Log file, useful mostly for debugging
Tune-31006-get.log 5254 Log file, useful mostly for debugging
Tune-31007-get.log 9463 Log file, useful mostly for debugging
Tune-31008-get.log 3562 Log file, useful mostly for debugging
These files should be available for 24 hours.