pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-75317-HaymakersThe_PLFD1657_144.ps) >>/Users/jc/w/tmp/Tune-75317-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/HaymakersThe_PLFD1657_144.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_75317.log 454209 Log file, useful mostly for debugging
Tune-75317-HaymakersThe_PLFD1657_144.abc 331 ABC music file with the extracted tune(s)
Tune-75317-HaymakersThe_PLFD1657_144.ps 32731 PostScript
Tune-75317-HaymakersThe_PLFD1657_144.txt 331 Plain-text file with the extracted tune(s)
Tune-75317-get.log 4804 Log file, useful mostly for debugging
These files should be available for 24 hours.