pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-37992-klezmer.ps) >>/Users/jc/w/tmp/Tune-37992-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/home.quicknet.nl/klezmer.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-37992-get.log 45055 Log file, useful mostly for debugging
Tune-37992-klezmer.abc 855 ABC music file with the extracted tune(s)
Tune-37992-klezmer.ps 42620 PostScript
Tune-37992-klezmer.txt 855 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.