Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Sets/CaledonianCountryDances.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2959-CaledonianCountryDances.ps) >>/Users/jc/w/tmp/Tune-2959-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Sets/CaledonianCountryDances.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_29599.log 300212 Log file, useful mostly for debugging
Form_29597.log 875 Log file, useful mostly for debugging
Tune-2959-CaledonianCountryDances.abc 160 ABC music file with the extracted tune(s)
Tune-2959-CaledonianCountryDances.ps 6 PostScript
Tune-2959-CaledonianCountryDances.txt 160 Plain-text file with the extracted tune(s)
Tune-2959-get.log 4335 Log file, useful mostly for debugging
Tune-29591-get.log 8521 Log file, useful mostly for debugging
Tune-29592-get.log 1386 Log file, useful mostly for debugging
Tune-29593-get.log 3074 Log file, useful mostly for debugging
Tune-29594-get.log 3860 Log file, useful mostly for debugging
Tune-29595-get.log 5530 Log file, useful mostly for debugging
Tune-29599-get.log 1386 Log file, useful mostly for debugging
These files should be available for 24 hours.