pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-32890-t391.ps) >>/Users/jc/w/tmp/Tune-32890-get.log 2>&1" returned status 256
http://www.arcelts.com/bbot1/t391.htm

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_32890.log 848 Log file, useful mostly for debugging
Tune-32890-get.log 4032 Log file, useful mostly for debugging
Tune-32890-t391.abc 238 ABC music file with the extracted tune(s)
Tune-32890-t391.ps 34343 PostScript
Tune-32890-t391.txt 238 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.