Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/new/24CountryDances_1780_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6483-24CountryDances_1780_Skillern.ps) >>/Users/jc/w/tmp/Tune-6483-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/new/24CountryDances_1780_Skillern.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_64838.log 831 Log file, useful mostly for debugging
Tune-6483-24CountryDances_1780_Skillern.abc 165 ABC music file with the extracted tune(s)
Tune-6483-24CountryDances_1780_Skillern.ps 6 PostScript
Tune-6483-24CountryDances_1780_Skillern.txt 165 Plain-text file with the extracted tune(s)
Tune-6483-get.log 4457 Log file, useful mostly for debugging
Tune-64833-get.log 8769 Log file, useful mostly for debugging
Tune-64835-get.log 3070 Log file, useful mostly for debugging
Tune-64835-tune.abc 140 ABC music file with the extracted tune(s)
Tune-64835-tune.txt 140 Plain-text file with the extracted tune(s)
Tune-64837-get.log 3905 Log file, useful mostly for debugging
These files should be available for 24 hours.