pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5703-1812_JGray.ps) >>/Users/jc/w/tmp/Tune-5703-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1812_JGray.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_57030.log 138043 Log file, useful mostly for debugging
Tune-5703-1812_JGray.abc 747 ABC music file with the extracted tune(s)
Tune-5703-1812_JGray.ps 36468 PostScript
Tune-5703-1812_JGray.txt 747 Plain-text file with the extracted tune(s)
Tune-5703-get.log 9366 Log file, useful mostly for debugging
These files should be available for 24 hours.