pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6876-1809_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-6876-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1809_Button_Whitaker.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_68762.log 237966 Log file, useful mostly for debugging
Form_68761.log 852 Log file, useful mostly for debugging
Form_68764.log 808 Log file, useful mostly for debugging
Form_68767.log 1719 Log file, useful mostly for debugging
Tune-6876-1809_Button_Whitaker.abc 20764 ABC music file with the extracted tune(s)
Tune-6876-1809_Button_Whitaker.ps 191915 PostScript
Tune-6876-1809_Button_Whitaker.txt 20764 Plain-text file with the extracted tune(s)
Tune-6876-get.log 17991 Log file, useful mostly for debugging
Tune-68768-get.log 173141 Log file, useful mostly for debugging
Tune-68769-get.log 3761 Log file, useful mostly for debugging
These files should be available for 24 hours.