pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-43202-intl.ps) >>/Users/jc/w/tmp/Tune-43202-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/ifdo.pugmarks.com/~seymour/runabc/intl/%36:PETRONELLA.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-43202-get.log 4881 Log file, useful mostly for debugging
Tune-43202-intl.abc 635 ABC music file with the extracted tune(s)
Tune-43202-intl.ps 35308 PostScript
Tune-43202-intl.txt 635 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.