pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4728-671_Trip_to_the_Oakes.ps) >>/Users/jc/w/tmp/Tune-4728-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1778/Thompson/671_Trip_to_the_Oakes.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-4728-671_Trip_to_the_Oakes.abc 805 ABC music file with the extracted tune(s)
Tune-4728-671_Trip_to_the_Oakes.ps 33335 PostScript
Tune-4728-671_Trip_to_the_Oakes.txt 805 Plain-text file with the extracted tune(s)
Tune-4728-get.log 4735 Log file, useful mostly for debugging
Tune-47281-get.log 3824 Log file, useful mostly for debugging
Tune-47287-get.log 4449 Log file, useful mostly for debugging
Tune-47288-get.log 5856 Log file, useful mostly for debugging
These files should be available for 24 hours.