pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-13357-3009_Northern_Lass.ps) >>/Users/jc/w/tmp/Tune-13357-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Playford/AB/3009_Northern_Lass.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-13357-3009_Northern_Lass.abc 793 ABC music file with the extracted tune(s)
Tune-13357-3009_Northern_Lass.ps 37807 PostScript
Tune-13357-3009_Northern_Lass.txt 793 Plain-text file with the extracted tune(s)
Tune-13357-get.log 9224 Log file, useful mostly for debugging
These files should be available for 24 hours.