pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81243-g.ps) >>/Users/jc/w/tmp/Tune-81243-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/g.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
Form_81243.log 890 Log file, useful mostly for debugging
Tune-81243-g.abc 379 ABC music file with the extracted tune(s)
Tune-81243-g.ps 34336 PostScript
Tune-81243-g.txt 379 Plain-text file with the extracted tune(s)
Tune-81243-get.log 4282 Log file, useful mostly for debugging
These files should be available for 24 hours.