pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-83869-326051084.ps) >>/Users/jc/w/tmp/Tune-83869-get.log 2>&1" returned status 256
http://dolory.seesaa.net/article/326051084.html

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-83869-326051084.abc 1749 ABC music file with the extracted tune(s)
Tune-83869-326051084.ps 53164 PostScript
Tune-83869-326051084.txt 1749 Plain-text file with the extracted tune(s)
Tune-83869-get.log 4332 Log file, useful mostly for debugging
These files should be available for 24 hours.