pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2469-Abc2.ps) >>/Users/jc/w/tmp/Tune-2469-get.log 2>&1" returned status 256
http://jjaquier.free.fr/midifiles/abc/Abc2.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_24690.log 156722 Log file, useful mostly for debugging
Coll_24691.log 150672 Log file, useful mostly for debugging
Coll_24699.log 263379 Log file, useful mostly for debugging
Tune-2469-Abc2.abc 260 ABC music file with the extracted tune(s)
Tune-2469-Abc2.ps 34836 PostScript
Tune-2469-Abc2.txt 260 Plain-text file with the extracted tune(s)
Tune-2469-get.log 4112 Log file, useful mostly for debugging
Tune-24692-get.log 3278 Log file, useful mostly for debugging
Tune-24693-get.log 3216 Log file, useful mostly for debugging
Tune-24698-get.log 3891 Log file, useful mostly for debugging
These files should be available for 24 hours.