pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-40426-BloomsburyMarket_PLFD1703_504.ps) >>/Users/jc/w/tmp/Tune-40426-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/BloomsburyMarket_PLFD1703_504.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_40426.log 833 Log file, useful mostly for debugging
Tune-40426-BloomsburyMarket_PLFD1703_504.abc 410 ABC music file with the extracted tune(s)
Tune-40426-BloomsburyMarket_PLFD1703_504.ps 34993 PostScript
Tune-40426-BloomsburyMarket_PLFD1703_504.txt 410 Plain-text file with the extracted tune(s)
Tune-40426-get.log 4956 Log file, useful mostly for debugging
These files should be available for 24 hours.