Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book26/24CountryDances_1776_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7742-24CountryDances_1776_Thompson.ps) >>/Users/jc/w/tmp/Tune-7742-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book26/24CountryDances_1776_Thompson.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_77421.log 11124 Log file, useful mostly for debugging
Coll_77423.log 2307346 Log file, useful mostly for debugging
Tune-7742-24CountryDances_1776_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-7742-24CountryDances_1776_Thompson.ps 6 PostScript
Tune-7742-24CountryDances_1776_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-7742-get.log 4477 Log file, useful mostly for debugging
Tune-77421-get.log 4141 Log file, useful mostly for debugging
Tune-77424-get.log 4660 Log file, useful mostly for debugging
Tune-77429-get.log 3574 Log file, useful mostly for debugging
These files should be available for 24 hours.