pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9375-abcproj.ps) >>/Users/jc/w/tmp/Tune-9375-get.log 2>&1" returned status 256
http://fiddletech.com/music/abcproj.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_93753.log 264789 Log file, useful mostly for debugging
Find_93757.log 1531 Log file, useful mostly for debugging
Form_93754.log 873 Log file, useful mostly for debugging
List93754.log 90 Log file, useful mostly for debugging
Tune-9375-abcproj.abc 236 ABC music file with the extracted tune(s)
Tune-9375-abcproj.ps 34513 PostScript
Tune-9375-abcproj.txt 236 Plain-text file with the extracted tune(s)
Tune-9375-get.log 7495 Log file, useful mostly for debugging
Tune-93750-get.log 3112 Log file, useful mostly for debugging
Tune-93752-get.log 6374 Log file, useful mostly for debugging
Tune-93753-get.log 3764 Log file, useful mostly for debugging
Tune-93755-get.log 3281 Log file, useful mostly for debugging
Tune-93758-get.log 4061 Log file, useful mostly for debugging
Tune-93759-get.log 4866 Log file, useful mostly for debugging
These files should be available for 24 hours.