pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4031-SailorsDance.ps) >>/Users/jc/w/tmp/Tune-4031-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/SailorsDance.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_40317.log 1087610 Log file, useful mostly for debugging
Tune-4031-SailorsDance.abc 4896 ABC music file with the extracted tune(s)
Tune-4031-SailorsDance.ps 67343 PostScript
Tune-4031-SailorsDance.txt 4896 Plain-text file with the extracted tune(s)
Tune-4031-get.log 4549 Log file, useful mostly for debugging
These files should be available for 24 hours.