pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-51213-MaidInTheMoonThe_PLFD1670_203.ps) >>/Users/jc/w/tmp/Tune-51213-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/MaidInTheMoonThe_PLFD1670_203.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-51213-MaidInTheMoonThe_PLFD1670_203.abc 424 ABC music file with the extracted tune(s)
Tune-51213-MaidInTheMoonThe_PLFD1670_203.ps 34230 PostScript
Tune-51213-MaidInTheMoonThe_PLFD1670_203.txt 424 Plain-text file with the extracted tune(s)
Tune-51213-get.log 6983 Log file, useful mostly for debugging
These files should be available for 24 hours.