pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-84676-MargaretAnnRobertson.ps) >>/Users/jc/w/tmp/Tune-84676-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/air/MargaretAnnRobertson.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-84676-MargaretAnnRobertson.abc 580 ABC music file with the extracted tune(s)
Tune-84676-MargaretAnnRobertson.ps 36976 PostScript
Tune-84676-MargaretAnnRobertson.txt 580 Plain-text file with the extracted tune(s)
Tune-84676-get.log 4592 Log file, useful mostly for debugging
These files should be available for 24 hours.