pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-87333-Pipers_Round.ps) >>/Users/jc/w/tmp/Tune-87333-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/Pipers_Round.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-87333-Pipers_Round.abc 1080 ABC music file with the extracted tune(s)
Tune-87333-Pipers_Round.ps 34286 PostScript
Tune-87333-Pipers_Round.txt 1080 Plain-text file with the extracted tune(s)
Tune-87333-get.log 5836 Log file, useful mostly for debugging
These files should be available for 24 hours.