pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1084-hamc.ps) >>/Users/jc/w/tmp/Tune-1084-get.log 2>&1" returned status 256
http://www.nigelgatherer.com/tunes/abc/abc2/hamc.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
Coll_10844.log 150672 Log file, useful mostly for debugging
Coll_10847.log 140992 Log file, useful mostly for debugging
Form_10846.log 722 Log file, useful mostly for debugging
Tune-1084-get.log 4132 Log file, useful mostly for debugging
Tune-1084-hamc.abc 311 ABC music file with the extracted tune(s)
Tune-1084-hamc.ps 34273 PostScript
Tune-1084-hamc.txt 311 Plain-text file with the extracted tune(s)
Tune-10841-get.log 3087 Log file, useful mostly for debugging
Tune-10843-get.log 3935 Log file, useful mostly for debugging
Tune-10846-get.log 5909 Log file, useful mostly for debugging
These files should be available for 24 hours.