Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Highland_Laddy.abc/24FavouriteDances_1779_Straight.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9493-24FavouriteDances_1779_Straight.ps) >>/Users/jc/w/tmp/Tune-9493-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Highland_Laddy.abc/24FavouriteDances_1779_Straight.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_9493.log 835 Log file, useful mostly for debugging
Form_94936.log 1401 Log file, useful mostly for debugging
Tune-9493-24FavouriteDances_1779_Straight.abc 182 ABC music file with the extracted tune(s)
Tune-9493-24FavouriteDances_1779_Straight.ps 6 PostScript
Tune-9493-24FavouriteDances_1779_Straight.txt 182 Plain-text file with the extracted tune(s)
Tune-9493-get.log 4593 Log file, useful mostly for debugging
Tune-94931-get.log 3378 Log file, useful mostly for debugging
Tune-94934-24CountryDances_1805_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-94934-24CountryDances_1805_Preston.ps 6 PostScript
Tune-94934-24CountryDances_1805_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-94934-get.log 9687 Log file, useful mostly for debugging
Tune-94936-endo.abc 143 ABC music file with the extracted tune(s)
Tune-94936-endo.ps 6 PostScript
Tune-94936-endo.txt 143 Plain-text file with the extracted tune(s)
Tune-94936-get.log 4000 Log file, useful mostly for debugging
Tune-94937-get.log 4170 Log file, useful mostly for debugging
These files should be available for 24 hours.