pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4669-nige.ps) >>/Users/jc/w/tmp/Tune-4669-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/nige.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_46692.log 140387 Log file, useful mostly for debugging
Form_46690.log 829 Log file, useful mostly for debugging
Tune-4669-get.log 4157 Log file, useful mostly for debugging
Tune-4669-nige.abc 335 ABC music file with the extracted tune(s)
Tune-4669-nige.ps 36212 PostScript
Tune-4669-nige.txt 335 Plain-text file with the extracted tune(s)
Tune-46690-get.log 1640 Log file, useful mostly for debugging
Tune-46694-get.log 4372 Log file, useful mostly for debugging
Tune-46699-get.log 3841 Log file, useful mostly for debugging
These files should be available for 24 hours.