Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/ECPMH/24CountryDances_1770.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6628-24CountryDances_1770.ps) >>/Users/jc/w/tmp/Tune-6628-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ECPMH/24CountryDances_1770.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_66289.log 938 Log file, useful mostly for debugging
Tune-6628-24CountryDances_1770.abc 158 ABC music file with the extracted tune(s)
Tune-6628-24CountryDances_1770.ps 6 PostScript
Tune-6628-24CountryDances_1770.txt 158 Plain-text file with the extracted tune(s)
Tune-6628-get.log 4280 Log file, useful mostly for debugging
Tune-66280-get.log 3688 Log file, useful mostly for debugging
Tune-66282-get.log 4022 Log file, useful mostly for debugging
Tune-66283-get.log 7700 Log file, useful mostly for debugging
Tune-66286-get.log 3364 Log file, useful mostly for debugging
Tune-66287-get.log 8179 Log file, useful mostly for debugging
Tune-66288-get.log 4143 Log file, useful mostly for debugging
These files should be available for 24 hours.