pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-71618-109.ps) >>/Users/jc/w/tmp/Tune-71618-get.log 2>&1" returned status 256
http://www.diatonique.net/tablat/109.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
Form_71618.log 837 Log file, useful mostly for debugging
Tune-71618-109.abc 535 ABC music file with the extracted tune(s)
Tune-71618-109.ps 35412 PostScript
Tune-71618-109.txt 535 Plain-text file with the extracted tune(s)
Tune-71618-get.log 4083 Log file, useful mostly for debugging
These files should be available for 24 hours.