pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4451-000_Title.ps) >>/Users/jc/w/tmp/Tune-4451-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Barsanti/000_Title.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_44511.log 142805 Log file, useful mostly for debugging
Coll_44519.log 598501 Log file, useful mostly for debugging
Form_44512.log 837 Log file, useful mostly for debugging
Tune-4451-000_Title.abc 853 ABC music file with the extracted tune(s)
Tune-4451-000_Title.ps 32603 PostScript
Tune-4451-000_Title.txt 853 Plain-text file with the extracted tune(s)
Tune-4451-get.log 4989 Log file, useful mostly for debugging
Tune-44510-get.log 5959 Log file, useful mostly for debugging
Tune-44512-get.log 11178 Log file, useful mostly for debugging
Tune-44513-get.log 29764 Log file, useful mostly for debugging
Tune-44517-get.log 3810 Log file, useful mostly for debugging
Tune-44518-get.log 10768 Log file, useful mostly for debugging
These files should be available for 24 hours.