pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-49359-BonnyBroom.ps) >>/Users/jc/w/tmp/Tune-49359-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/BonnyBroom.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_49359.log 135711 Log file, useful mostly for debugging
Tune-49359-BonnyBroom.abc 219 ABC music file with the extracted tune(s)
Tune-49359-BonnyBroom.ps 32031 PostScript
Tune-49359-BonnyBroom.txt 219 Plain-text file with the extracted tune(s)
Tune-49359-get.log 4425 Log file, useful mostly for debugging
These files should be available for 24 hours.