Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1784/24CountryDances_1771_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1980-24CountryDances_1771_Thompson.ps) >>/Users/jc/w/tmp/Tune-1980-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1784/24CountryDances_1771_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_19802.log 162094 Log file, useful mostly for debugging
Tune-1980-24CountryDances_1771_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-1980-24CountryDances_1771_Thompson.ps 6 PostScript
Tune-1980-24CountryDances_1771_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-1980-get.log 4467 Log file, useful mostly for debugging
Tune-19807-get.log 4625 Log file, useful mostly for debugging
Tune-19808-get.log 4891 Log file, useful mostly for debugging
These files should be available for 24 hours.