pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8104-schott.ps) >>/Users/jc/w/tmp/Tune-8104-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/schott.abc.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_81040.log 260559 Log file, useful mostly for debugging
Coll_81044.log 406981 Log file, useful mostly for debugging
Form_81049.log 876 Log file, useful mostly for debugging
Tune-8104-get.log 4237 Log file, useful mostly for debugging
Tune-8104-schott.abc 276 ABC music file with the extracted tune(s)
Tune-8104-schott.ps 34137 PostScript
Tune-8104-schott.txt 276 Plain-text file with the extracted tune(s)
Tune-81040-get.log 1420 Log file, useful mostly for debugging
Tune-81049-get.log 9517 Log file, useful mostly for debugging
These files should be available for 24 hours.