pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-30611-Midnight_Oil.ps) >>/Users/jc/w/tmp/Tune-30611-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/OriginallyMine/Midnight_Oil.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Form_30611.log 1049 Log file, useful mostly for debugging
Tune-30611-Midnight_Oil.abc 1216 ABC music file with the extracted tune(s)
Tune-30611-Midnight_Oil.ps 38961 PostScript
Tune-30611-Midnight_Oil.txt 1216 Plain-text file with the extracted tune(s)
Tune-30611-get.log 4481 Log file, useful mostly for debugging
These files should be available for 24 hours.