pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-85587-Old_Batchelor.ps) >>/Users/jc/w/tmp/Tune-85587-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/Old_Batchelor.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_85587.log 459810 Log file, useful mostly for debugging
Tune-85587-Old_Batchelor.abc 1630 ABC music file with the extracted tune(s)
Tune-85587-Old_Batchelor.ps 35675 PostScript
Tune-85587-Old_Batchelor.txt 1630 Plain-text file with the extracted tune(s)
Tune-85587-get.log 4465 Log file, useful mostly for debugging
These files should be available for 24 hours.