pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-70830-66_DukeOfYorksCottillion.ps) >>/Users/jc/w/tmp/Tune-70830-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1791/Thompson/66_DukeOfYorksCottillion.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-70830-66_DukeOfYorksCottillion.abc 833 ABC music file with the extracted tune(s)
Tune-70830-66_DukeOfYorksCottillion.ps 34385 PostScript
Tune-70830-66_DukeOfYorksCottillion.txt 833 Plain-text file with the extracted tune(s)
Tune-70830-get.log 4864 Log file, useful mostly for debugging
These files should be available for 24 hours.