Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Newc121/24CountryDances_1803_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8757-24CountryDances_1803_Preston.ps) >>/Users/jc/w/tmp/Tune-8757-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Newc121/24CountryDances_1803_Preston.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-8757-24CountryDances_1803_Preston.abc 168 ABC music file with the extracted tune(s)
Tune-8757-24CountryDances_1803_Preston.ps 6 PostScript
Tune-8757-24CountryDances_1803_Preston.txt 168 Plain-text file with the extracted tune(s)
Tune-8757-get.log 12229 Log file, useful mostly for debugging
Tune-87570-get.log 4585 Log file, useful mostly for debugging
Tune-87573-get.log 13148 Log file, useful mostly for debugging
Tune-87575-get.log 4339 Log file, useful mostly for debugging
Tune-87577-get.log 4013 Log file, useful mostly for debugging
Tune-87579-HaandMeDoonDaFiddle.abc 168 ABC music file with the extracted tune(s)
Tune-87579-HaandMeDoonDaFiddle.txt 168 Plain-text file with the extracted tune(s)
Tune-87579-get.log 12650 Log file, useful mostly for debugging
These files should be available for 24 hours.