pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-50208-Zinzans_Maggot.ps) >>/Users/jc/w/tmp/Tune-50208-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/Zinzans_Maggot.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_50208.log 297411 Log file, useful mostly for debugging
Tune-50208-Zinzans_Maggot.abc 1065 ABC music file with the extracted tune(s)
Tune-50208-Zinzans_Maggot.ps 34071 PostScript
Tune-50208-Zinzans_Maggot.txt 1065 Plain-text file with the extracted tune(s)
Tune-50208-get.log 4494 Log file, useful mostly for debugging
These files should be available for 24 hours.