pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4984-BonnyBroom.ps) >>/Users/jc/w/tmp/Tune-4984-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/England/Playford/BonnyBroom.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_4984.log 134337 Log file, useful mostly for debugging
Form_49849.log 765 Log file, useful mostly for debugging
Tune-4984-BonnyBroom.abc 0 ABC music file with the extracted tune(s)
Tune-4984-BonnyBroom.ps 0 PostScript
Tune-4984-get.log 8179 Log file, useful mostly for debugging
Tune-49844-get.log 4217 Log file, useful mostly for debugging
These files should be available for 24 hours.