pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-14181-Salt_Fish_and_Dumplins.ps) >>/Users/jc/w/tmp/Tune-14181-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/Salt_Fish_and_Dumplins.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-14181-Salt_Fish_and_Dumplins.abc 488 ABC music file with the extracted tune(s)
Tune-14181-Salt_Fish_and_Dumplins.ps 34609 PostScript
Tune-14181-Salt_Fish_and_Dumplins.txt 488 Plain-text file with the extracted tune(s)
Tune-14181-get.log 4704 Log file, useful mostly for debugging
These files should be available for 24 hours.