pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-73908-10031_Coolun.ps) >>/Users/jc/w/tmp/Tune-73908-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/10031_Coolun.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_73908.log 402421 Log file, useful mostly for debugging
Form_73908.log 970 Log file, useful mostly for debugging
Tune-73908-10031_Coolun.abc 610 ABC music file with the extracted tune(s)
Tune-73908-10031_Coolun.ps 36127 PostScript
Tune-73908-10031_Coolun.txt 610 Plain-text file with the extracted tune(s)
Tune-73908-get.log 4376 Log file, useful mostly for debugging
These files should be available for 24 hours.