pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3239-072_Grearsons.ps) >>/Users/jc/w/tmp/Tune-3239-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JeanWhite/100_Popular_HRJCD/072_Grearsons.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_32392.log 135065 Log file, useful mostly for debugging
Coll_32399.log 261851 Log file, useful mostly for debugging
Form_32391.log 863 Log file, useful mostly for debugging
Form_32393.log 978 Log file, useful mostly for debugging
Form_32394.log 833 Log file, useful mostly for debugging
Tune-3239-072_Grearsons.abc 628 ABC music file with the extracted tune(s)
Tune-3239-072_Grearsons.ps 34495 PostScript
Tune-3239-072_Grearsons.txt 628 Plain-text file with the extracted tune(s)
Tune-3239-get.log 4602 Log file, useful mostly for debugging
Tune-32390-get.log 5825 Log file, useful mostly for debugging
Tune-32397-get.log 6050 Log file, useful mostly for debugging
Tune-32398-get.log 54870 Log file, useful mostly for debugging
Tune-32399-get.log 7492 Log file, useful mostly for debugging
These files should be available for 24 hours.