pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24014-PetticoatWag_PLFD1651_079.ps) >>/Users/jc/w/tmp/Tune-24014-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/PetticoatWag_PLFD1651_079.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-24014-PetticoatWag_PLFD1651_079.abc 411 ABC music file with the extracted tune(s)
Tune-24014-PetticoatWag_PLFD1651_079.ps 34083 PostScript
Tune-24014-PetticoatWag_PLFD1651_079.txt 411 Plain-text file with the extracted tune(s)
Tune-24014-get.log 5436 Log file, useful mostly for debugging
These files should be available for 24 hours.