pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-61573-celticjamtunes.ps) >>/Users/jc/w/tmp/Tune-61573-get.log 2>&1" returned status 256
http://celticjam.puckette.com/celticjamtunes.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-61573-celticjamtunes.abc 260 ABC music file with the extracted tune(s)
Tune-61573-celticjamtunes.ps 35400 PostScript
Tune-61573-celticjamtunes.txt 260 Plain-text file with the extracted tune(s)
Tune-61573-get.log 13627 Log file, useful mostly for debugging
These files should be available for 24 hours.