pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-49043-B318B_Piss_upon_the_Grass_Later_Nancy_Dawson_.ps) >>/Users/jc/w/tmp/Tune-49043-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CaledonianCountryDances/cache/B318B_Piss_upon_the_Grass_Later_Nancy_Dawson_.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Form_49043.log 863 Log file, useful mostly for debugging
Tune-49043-B318B_Piss_upon_the_Grass_Later_Nancy_Dawson_.abc 280 ABC music file with the extracted tune(s)
Tune-49043-B318B_Piss_upon_the_Grass_Later_Nancy_Dawson_.ps 33969 PostScript
Tune-49043-B318B_Piss_upon_the_Grass_Later_Nancy_Dawson_.txt 280 Plain-text file with the extracted tune(s)
Tune-49043-get.log 5500 Log file, useful mostly for debugging
These files should be available for 24 hours.