pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-70025-stubbertarchive.ps) >>/Users/jc/w/tmp/Tune-70025-get.log 2>&1" returned status 256
http://www.cranfordpub.com/tunes/abcs/stubbertarchive.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
Tune-70025-get.log 4439 Log file, useful mostly for debugging
Tune-70025-stubbertarchive.abc 523 ABC music file with the extracted tune(s)
Tune-70025-stubbertarchive.ps 35944 PostScript
Tune-70025-stubbertarchive.txt 523 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.